{"id":86810,"date":"2025-05-11T13:27:44","date_gmt":"2025-05-11T06:27:44","guid":{"rendered":"https:\/\/itviec1.uptech.vn\/?p=86810"},"modified":"2025-05-11T13:27:44","modified_gmt":"2025-05-11T06:27:44","slug":"hoc-lap-trinh-shell","status":"publish","type":"post","link":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/","title":{"rendered":"5 b\u01b0\u1edbc h\u1ecdc l\u1eadp tr\u00ecnh Shell b\u00e0i b\u1ea3n nh\u1ea5t v\u00e0 t\u00e0i li\u1ec7u chi ti\u1ebft"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">N\u1ed9i dung b\u00e0i vi\u1ebft<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#Hieu_ve_lap_trinh_shell\" >Hi\u1ec3u v\u1ec1 l\u1eadp tr\u00ecnh shell<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#Lo_trinh_hoc_lap_trinh_shell\" >L\u1ed9 tr\u00ecnh h\u1ecdc l\u1eadp tr\u00ecnh shell<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#Tai_nguyen_hoc_lap_trinh_shell\" >T\u00e0i nguy\u00ean h\u1ecdc l\u1eadp tr\u00ecnh shell<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#Mot_so_meo_giup_hoc_lap_trinh_shell_hieu_qua_hon\" >M\u1ed9t s\u1ed1 m\u1eb9o gi\u00fap h\u1ecdc l\u1eadp tr\u00ecnh shell hi\u1ec7u qu\u1ea3 h\u01a1n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#Cau_hoi_thuong_gap_ve_lap_trinh_shell\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 l\u1eadp tr\u00ecnh shell<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#Tong_ket\" >T\u1ed5ng k\u1ebft<\/a><\/li><\/ul><\/nav><\/div>\n<p><em><strong>L\u1eadp tr\u00ecnh shell c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m m\u1edbi m\u1ebb, nh\u01b0ng th\u1ef1c t\u1ebf \u0111\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 v\u00f4 c\u00f9ng m\u1ea1nh m\u1ebd v\u00e0 h\u1eefu \u00edch trong vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh r\u00f5 m\u1ee5c ti\u00eau h\u1ecdc l\u1eadp tr\u00ecnh shell v\u00e0 c\u00e1c b\u1eaft \u0111\u1ea7u h\u1ecdc hi\u1ec7u qu\u1ea3.<\/strong><\/em><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ecdc b\u00e0i vi\u1ebft n\u00e0y \u0111\u1ec3 hi\u1ec3u r\u00f5 h\u01a1n v\u1ec1:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L\u1ed9 tr\u00ecnh h\u1ecdc l\u1eadp tr\u00ecnh shell chi ti\u1ebft<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u00e0i nguy\u00ean h\u1ecdc l\u1eadp tr\u00ecnh shell<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u1ed9t s\u1ed1 m\u1eb9o gi\u00fap chinh ph\u1ee5c shell script<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Hieu_ve_lap_trinh_shell\"><\/span><b>Hi\u1ec3u v\u1ec1 l\u1eadp tr\u00ecnh shell<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><strong>Shell script l\u00e0 g\u00ec?<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Shell script l\u00e0 c\u00e1c t\u1eadp l\u1ec7nh d\u00f9ng \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 tr\u00ean h\u1ec7 \u0111i\u1ec1u h\u00e0nh Unix\/Linux. N\u00f3 cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng k\u1ebft h\u1ee3p c\u00e1c l\u1ec7nh h\u1ec7 th\u1ed1ng v\u00e0o trong m\u1ed9t t\u1ec7p tin duy nh\u1ea5t, gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 gi\u1ea3m thi\u1ec3u sai s\u00f3t khi th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 th\u01b0\u1eddng xuy\u00ean nh\u01b0: sao l\u01b0u d\u1eef li\u1ec7u, ki\u1ec3m tra t\u00ecnh tr\u1ea1ng h\u1ec7 th\u1ed1ng hay qu\u1ea3n l\u00fd c\u00e1c d\u1ecbch v\u1ee5 h\u1ec7 th\u1ed1ng.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00f2n l\u1eadp tr\u00ecnh shell l\u00e0 qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh trong shell \u0111\u1ec3 vi\u1ebft c\u00e1c script. L\u1eadp tr\u00ecnh shell gi\u00fap b\u1ea1n th\u1ef1c hi\u1ec7n c\u00e1c quy tr\u00ecnh ph\u1ee9c t\u1ea1p m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n v\u00e0 nhanh ch\u00f3ng, \u0111\u1eb7c bi\u1ec7t h\u1eefu \u00edch khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c h\u1ec7 th\u1ed1ng Unix\/Linux.<\/span><\/p>\n<h3><b>L\u1ecbch s\u1eed ph\u00e1t tri\u1ec3n c\u1ee7a shell<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Shell \u0111\u00e3 c\u00f3 m\u1ed9t h\u00e0nh tr\u00ecnh ph\u00e1t tri\u1ec3n d\u00e0i v\u00e0 \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong h\u1ec7 th\u1ed1ng Unix\/Linux hi\u1ec7n nay:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Shell \u0111\u1ea7u ti\u00ean l\u00e0 <\/span><b>Thompson shell<\/b><span style=\"font-weight: 400;\"> (hay c\u00f2n g\u1ecdi l\u00e0 V6 shell), \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Ken Thomson khi Unix ra \u0111\u1eddi v\u00e0o nh\u1eefng n\u0103m 1970. Tuy nhi\u00ean, V6 shell kh\u00f4ng h\u1ed7 tr\u1ee3 l\u1eadp tr\u00ecnh (scripting) cho c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 tr\u1edf n\u00ean kh\u00f3 kh\u0103n.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Sau \u0111\u00f3 l\u00e0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Bourne shell (sh)<\/b><span style=\"font-weight: 400;\">: Ra \u0111\u1eddi n\u0103m 1977, \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Stephen Bourne, gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 vi\u1ebft c\u00e1c script v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng vi\u1ec7c. \u0110\u00e2y l\u00e0 b\u01b0\u1edbc ti\u1ebfn l\u1edbn gi\u00fap c\u00e1c l\u1eadp tr\u00ecnh vi\u00ean d\u1ec5 d\u00e0ng thao t\u00e1c v\u00e0 \u0111i\u1ec1u khi\u1ec3n h\u1ec7 th\u1ed1ng h\u01a1n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>C-shell (csh)<\/b><span style=\"font-weight: 400;\"> \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi Bill Joy t\u1ea1i \u0110\u1ea1i h\u1ecdc California, Berkeley v\u00e0 <\/span><b>Korn shell (ksh) <\/b><span style=\"font-weight: 400;\">\u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n b\u1edfi David Korn t\u1ea1i AT&amp;T Bell Labs ra \u0111\u1eddi v\u00e0o nh\u1eefng n\u0103m 1980, m\u1ed7i lo\u1ea1i mang \u0111\u1ebfn nh\u1eefng t\u00ednh n\u0103ng m\u1edbi m\u1ebb, c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng qu\u1ea3n l\u00fd l\u1ec7nh v\u00e0 x\u1eed l\u00fd h\u1ec7 th\u1ed1ng. \u0110\u1eb7c bi\u1ec7t, Korn shell l\u00e0 b\u1ea3n k\u1ebft h\u1ee3p nh\u1eefng \u01b0u \u0111i\u1ec3m c\u1ee7a c\u1ea3 Bourne shell v\u00e0 C-shell gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 l\u00e0m vi\u1ec7c hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b><a href=\"https:\/\/itviec.com\/blog\/bash-shell-la-gi\/\" target=\"_blank\" rel=\"noopener\">Bash shell<\/a> (Bourne Again shell)<\/b><span style=\"font-weight: 400;\"> l\u00e0 phi\u00ean b\u1ea3n ph\u1ed5 bi\u1ebfn nh\u1ea5t. Bash c\u1ea3i ti\u1ebfn nh\u1eefng t\u00ednh n\u0103ng c\u1ee7a Bourne shell, b\u1ed5 sung th\u00eam c\u00e1c t\u00ednh n\u0103ng h\u1eefu \u00edch nh\u01b0 l\u1ecbch s\u1eed l\u1ec7nh, ho\u00e0n th\u00e0nh t\u1ef1 \u0111\u1ed9ng l\u1ec7nh v\u00e0 kh\u1ea3 n\u0103ng vi\u1ebft c\u00e1c script ph\u1ee9c t\u1ea1p. Bash hi\u1ec7n l\u00e0 shell m\u1eb7c \u0111\u1ecbnh tr\u00ean nhi\u1ec1u h\u1ec7 th\u1ed1ng Linux v\u00e0 macOS, v\u00e0 l\u00e0 c\u00f4ng c\u1ee5 quan tr\u1ecdng \u0111\u1ed1i v\u1edbi l\u1eadp tr\u00ecnh vi\u00ean c\u0169ng nh\u01b0 qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng, gi\u00fap t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3.<\/span><\/li>\n<\/ul>\n<blockquote><p><em>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/shell-vs-bash\/\" target=\"_blank\" rel=\"noopener\"><strong>Shell vs Bash: Ph\u00e2n bi\u1ec7t v\u00e0 l\u1ef1a ch\u1ecdn c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p<\/strong><\/a><\/em><\/p><\/blockquote>\n<h3><b>L\u1eadp tr\u00ecnh shell \u1ee9ng d\u1ee5ng v\u00e0o vi\u1ec7c g\u00ec?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">L\u1eadp tr\u00ecnh shell c\u00f3 th\u1ec3 \u1ee9ng d\u1ee5ng r\u1ed9ng r\u00e3i trong nhi\u1ec1u c\u00f4ng vi\u1ec7c kh\u00e1c nhau, \u0111\u1eb7c bi\u1ec7t l\u00e0 trong l\u0129nh v\u1ef1c qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng, t\u1ef1 \u0111\u1ed9ng h\u00f3a, v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng n\u1ed5i b\u1eadt m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 g\u1eb7p trong c\u00f4ng vi\u1ec7c h\u00e0ng ng\u00e0y:<\/span><\/p>\n<ul>\n<li aria-level=\"1\"><b>Qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng (System Administration): <\/b><span style=\"font-weight: 400;\">Shell script gi\u00fap c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean h\u1ec7 th\u1ed1ng (system admin) t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 nh\u01b0 sao l\u01b0u d\u1eef li\u1ec7u, ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec h\u1ec7 th\u1ed1ng. Thay v\u00ec ph\u1ea3i th\u1ef1c hi\u1ec7n th\u1ee7 c\u00f4ng, c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean c\u00f3 th\u1ec3 vi\u1ebft c\u00e1c script \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a vi\u1ec7c kh\u1edfi \u0111\u1ed9ng l\u1ea1i d\u1ecbch v\u1ee5, qu\u1ea3n l\u00fd ng\u01b0\u1eddi d\u00f9ng v\u00e0 ki\u1ec3m tra t\u00ecnh tr\u1ea1ng c\u00e1c t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng.<\/span><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>T\u1ef1 \u0111\u1ed9ng h\u00f3a quy tr\u00ecnh (Process Automation): <\/b><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng \u1ee9ng d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t c\u1ee7a shell script l\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c quy tr\u00ecnh l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. V\u00ed d\u1ee5, b\u1ea1n c\u00f3 th\u1ec3 t\u1ea1o m\u1ed9t script \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m, tri\u1ec3n khai m\u00e3 ngu\u1ed3n m\u1edbi ho\u1eb7c qu\u00e9t c\u00e1c h\u1ec7 th\u1ed1ng \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1ed7i m\u1ed7i ng\u00e0y m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i l\u00e0m th\u1ee7 c\u00f4ng.<\/span><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Qu\u1ea3n l\u00fd t\u1ec7p v\u00e0 th\u01b0 m\u1ee5c (File and Directory Management): <\/b><span style=\"font-weight: 400;\">Shell scripting gi\u00fap b\u1ea1n x\u1eed l\u00fd h\u00e0ng lo\u1ea1t c\u00e1c t\u1ec7p v\u00e0 th\u01b0 m\u1ee5c, t\u1eeb vi\u1ec7c sao ch\u00e9p, di chuy\u1ec3n, \u0111\u1ed5i t\u00ean t\u1ec7p \u0111\u1ebfn vi\u1ec7c qu\u00e9t v\u00e0 x\u1eed l\u00fd c\u00e1c d\u1eef li\u1ec7u b\u00ean trong t\u1ec7p. \u0110i\u1ec1u n\u00e0y c\u1ef1c k\u1ef3 h\u1eefu \u00edch trong c\u00e1c c\u00f4ng vi\u1ec7c li\u00ean quan \u0111\u1ebfn vi\u1ec7c t\u1ed5 ch\u1ee9c v\u00e0 duy tr\u00ec c\u00e1c kho l\u01b0u tr\u1eef t\u1ec7p ho\u1eb7c c\u01a1 s\u1edf d\u1eef li\u1ec7u l\u1edbn.<\/span><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Gi\u00e1m s\u00e1t v\u00e0 c\u1ea3nh b\u00e1o h\u1ec7 th\u1ed1ng (System Monitoring and Alerts): <\/b><span style=\"font-weight: 400;\">Shell script c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 theo d\u00f5i c\u00e1c th\u00f4ng s\u1ed1 h\u1ec7 th\u1ed1ng nh\u01b0 dung l\u01b0\u1ee3ng \u1ed5 \u0111\u0129a, b\u1ed9 nh\u1edb, CPU v\u00e0 c\u00e1c d\u1ecbch v\u1ee5. N\u1ebfu ph\u00e1t hi\u1ec7n c\u00f3 s\u1ef1 c\u1ed1 ho\u1eb7c c\u00f3 d\u1ea5u hi\u1ec7u c\u1ee7a l\u1ed7i, h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 t\u1ef1 \u0111\u1ed9ng g\u1eedi c\u1ea3nh b\u00e1o qua email ho\u1eb7c th\u00f4ng b\u00e1o tr\u00ean c\u00e1c h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t.<\/span><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>X\u1eed l\u00fd d\u1eef li\u1ec7u (Data Processing): <\/b><span style=\"font-weight: 400;\">V\u1edbi c\u00e1c c\u00f4ng c\u1ee5 d\u00f2ng l\u1ec7nh m\u1ea1nh m\u1ebd nh\u01b0 grep, awk, sed, shell script c\u00f3 th\u1ec3 x\u1eed l\u00fd v\u00e0 ph\u00e2n t\u00edch d\u1eef li\u1ec7u v\u0103n b\u1ea3n. \u0110\u00e2y l\u00e0 \u1ee9ng d\u1ee5ng c\u1ef1c k\u1ef3 h\u1eefu \u00edch trong vi\u1ec7c x\u1eed l\u00fd log file, ph\u00e2n t\u00edch d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o t\u1eeb nhi\u1ec1u ngu\u1ed3n kh\u00e1c nhau v\u00e0 tr\u00edch xu\u1ea5t th\u00f4ng tin quan tr\u1ecdng t\u1eeb d\u1eef li\u1ec7u l\u1edbn.<\/span><\/li>\n<\/ul>\n<ul>\n<li aria-level=\"1\"><b>Qu\u1ea3n l\u00fd c\u00e1c t\u00e1c v\u1ee5 t\u1eeb xa (Remote Task Management): <\/b><span style=\"font-weight: 400;\">Shell script c\u00f3 th\u1ec3 gi\u00fap qu\u1ea3n l\u00fd v\u00e0 th\u1ef1c thi c\u00e1c t\u00e1c v\u1ee5 t\u1eeb xa, v\u00ed d\u1ee5 nh\u01b0 d\u00f9ng SSH \u0111\u1ec3 ch\u1ea1y c\u00e1c script tr\u00ean m\u00e1y ch\u1ee7 t\u1eeb xa, gi\u00fap qu\u1ea3n l\u00fd nhi\u1ec1u m\u00e1y t\u00ednh ho\u1eb7c m\u00e1y ch\u1ee7 m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i truy c\u1eadp tr\u1ef1c ti\u1ebfp v\u00e0o t\u1eebng h\u1ec7 th\u1ed1ng.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>CI\/CD (Continuous Integration\/Continuous Deployment):<\/b><span style=\"font-weight: 400;\">\u00a0 Shell script \u0111\u00f3ng vai tr\u00f2 quan tr\u1ecdng trong c\u00e1c pipeline CI\/CD, gi\u00fap t\u1ef1 \u0111\u1ed9ng h\u00f3a qu\u00e1 tr\u00ecnh ki\u1ec3m th\u1eed, x\u00e2y d\u1ef1ng v\u00e0 tri\u1ec3n khai ph\u1ea7n m\u1ec1m. C\u00e1c script n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 Jenkins, GitLab CI, hay GitHub Actions \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a quy tr\u00ecnh ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u1ea1o c\u00e1c c\u00f4ng c\u1ee5 t\u00f9y ch\u1ec9nh (Custom Tooling): <\/b><span style=\"font-weight: 400;\">Shell script cho ph\u00e9p t\u1ea1o ra c\u00e1c c\u00f4ng c\u1ee5 t\u00f9y ch\u1ec9nh ph\u00f9 h\u1ee3p v\u1edbi nhu c\u1ea7u c\u1ee5 th\u1ec3 c\u1ee7a m\u1ed9t t\u1ed5 ch\u1ee9c ho\u1eb7c d\u1ef1 \u00e1n. C\u00e1c c\u00f4ng c\u1ee5 n\u00e0y c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c t\u00e1c v\u1ee5 ph\u1ee9c t\u1ea1p th\u00e0nh m\u1ed9t l\u1ec7nh duy nh\u1ea5t, gi\u00fap ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 gi\u1ea3m kh\u1ea3 n\u0103ng x\u1ea3y ra l\u1ed7i do thao t\u00e1c th\u1ee7 c\u00f4ng.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Lo_trinh_hoc_lap_trinh_shell\"><\/span><b>L\u1ed9 tr\u00ecnh h\u1ecdc l\u1eadp tr\u00ecnh shell<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>Giai \u0111o\u1ea1n 1: L\u00e0m quen v\u1edbi m\u00f4i tr\u01b0\u1eddng shell<\/b><\/h3>\n<h4><b>Hi\u1ec3u v\u1ec1 shell v\u00e0 Terminal<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">Kh\u00e1m ph\u00e1 vai tr\u00f2 c\u1ee7a shell nh\u01b0 m\u1ed9t giao di\u1ec7n d\u00f2ng l\u1ec7nh gi\u1eefa ng\u01b0\u1eddi d\u00f9ng v\u00e0 h\u1ec7 \u0111i\u1ec1u h\u00e0nh.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">L\u00e0m quen v\u1edbi Terminal, n\u01a1i b\u1ea1n s\u1ebd nh\u1eadp c\u00e1c l\u1ec7nh \u0111\u1ec3 t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Hi\u1ec3u s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa c\u00e1c lo\u1ea1i shell ph\u1ed5 bi\u1ebfn (bash, zsh, fish).<\/span><\/li>\n<\/ul>\n<h4><b>S\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh c\u01a1 b\u1ea3n<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">H\u1ecdc c\u00e1c l\u1ec7nh nh\u01b0 <\/span><span style=\"font-weight: 400;\">ls<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">cd<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">pwd<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">cp<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">mv<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">rm<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">mkdir<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">rmdir<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 qu\u1ea3n l\u00fd t\u1ec7p v\u00e0 th\u01b0 m\u1ee5c.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Hi\u1ec3u c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c t\u00f9y ch\u1ecdn v\u1edbi c\u00e1c l\u1ec7nh (flags) v\u00e0 \u0111\u01b0\u1eddng d\u1eabn t\u01b0\u01a1ng \u0111\u1ed1i\/tuy\u1ec7t \u0111\u1ed1i.<\/span><\/li>\n<\/ul>\n<h4><b>Qu\u1ea3n l\u00fd quy\u1ec1n truy c\u1eadp<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">Hi\u1ec3u v\u00e0 s\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh <\/span><span style=\"font-weight: 400;\">chmod<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">chown<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">chgrp<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 thay \u0111\u1ed5i quy\u1ec1n truy c\u1eadp v\u00e0 s\u1edf h\u1eefu t\u1ec7p.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">N\u1eafm v\u1eefng h\u1ec7 th\u1ed1ng ph\u00e2n quy\u1ec1n Unix (user, group, others) v\u00e0 bi\u1ec3u di\u1ec5n s\u1ed1 c\u1ee7a ch\u00fang (777, 644, &#8230;.).<\/span><\/li>\n<\/ul>\n<h4><b>Th\u1ef1c h\u00e0nh c\u00e1c t\u00e1c v\u1ee5 \u0111\u01a1n gi\u1ea3n<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 cat, more, less, head, tail, grep, sed, awk \u0111\u1ec3 x\u1eed l\u00fd v\u00e0 t\u00ecm ki\u1ebfm v\u0103n b\u1ea3n trong t\u1ec7p.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng pipe (|) v\u00e0 chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra (<\/span><span style=\"font-weight: 400;\">&gt;<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">&gt;&gt;<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">&lt;<\/span><span style=\"font-weight: 400;\">).<\/span><\/li>\n<\/ul>\n<h3><b>Giai \u0111o\u1ea1n 2: L\u1eadp tr\u00ecnh shell c\u01a1 b\u1ea3n<\/b><\/h3>\n<h4><b>Bi\u1ebfn v\u00e0 tham s\u1ed1<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">T\u00ecm hi\u1ec3u c\u00e1ch khai b\u00e1o v\u00e0 s\u1eed d\u1ee5ng bi\u1ebfn trong shell, ph\u00e2n bi\u1ec7t gi\u1eefa bi\u1ebfn h\u1ec7 th\u1ed1ng v\u00e0 bi\u1ebfn ng\u01b0\u1eddi d\u00f9ng.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">H\u1ecdc c\u00e1ch truy c\u1eadp c\u00e1c tham s\u1ed1 v\u1ecb tr\u00ed (<\/span><span style=\"font-weight: 400;\">1<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">$2<\/span><span style=\"font-weight: 400;\">&#8230;), c\u00e1c bi\u1ebfn \u0111\u1eb7c bi\u1ec7t (<\/span><span style=\"font-weight: 400;\">?<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">$#<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">$*<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">$@<\/span><span style=\"font-weight: 400;\">) v\u00e0 ph\u1ea1m vi c\u1ee7a bi\u1ebfn (local v\u00e0 global).<\/span><\/li>\n<\/ul>\n<h4><b>C\u1ea5u tr\u00fac \u0111i\u1ec1u ki\u1ec7n<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c c\u00e2u l\u1ec7nh if, elif, else, case \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c quy\u1ebft \u0111\u1ecbnh trong script.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Hi\u1ec3u c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c to\u00e1n t\u1eed so s\u00e1nh kh\u00e1c nhau (<\/span><span style=\"font-weight: 400;\">-eq<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">-ne<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">-lt<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">-gt<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">-le<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">-ge<\/span><span style=\"font-weight: 400;\">) v\u00e0 ki\u1ec3m tra \u0111i\u1ec1u ki\u1ec7n v\u1edbi test ho\u1eb7c [ ].<\/span><\/li>\n<\/ul>\n<h4><b>V\u00f2ng l\u1eb7p<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">L\u00e0m quen v\u1edbi c\u00e1c v\u00f2ng l\u1eb7p nh\u01b0 <\/span><span style=\"font-weight: 400;\">for<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">while<\/span><span style=\"font-weight: 400;\">, <\/span><span style=\"font-weight: 400;\">until<\/span><span style=\"font-weight: 400;\"> \u0111\u1ec3 l\u1eb7p qua c\u00e1c ph\u1ea7n t\u1eed ho\u1eb7c th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 nhi\u1ec1u l\u1ea7n.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng break v\u00e0 continue \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n lu\u1ed3ng trong v\u00f2ng l\u1eb7p.<\/span><\/li>\n<\/ul>\n<h4><b>H\u00e0m v\u00e0 ch\u1ee9c n\u0103ng<\/b><\/h4>\n<ul>\n<li><span style=\"font-weight: 400;\">T\u1ea1o v\u00e0 s\u1eed d\u1ee5ng h\u00e0m \u0111\u1ec3 t\u00e1i s\u1eed d\u1ee5ng m\u00e3 v\u00e0 t\u1ed5 ch\u1ee9c script m\u1ed9t c\u00e1ch hi\u1ec7u qu\u1ea3 h\u01a1n.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Hi\u1ec3u c\u00e1ch truy\u1ec1n tham s\u1ed1 cho h\u00e0m v\u00e0 tr\u1ea3 v\u1ec1 gi\u00e1 tr\u1ecb t\u1eeb h\u00e0m v\u1edbi exit code.<\/span><\/li>\n<\/ul>\n<blockquote><p>\u0110\u1ecdc th\u00eam: <a href=\"https:\/\/itviec.com\/blog\/shell-script-la-gi\/\" target=\"_blank\" rel=\"noopener\"><strong>C\u00e1c kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n trong c\u00fa ph\u00e1p v\u00e0 c\u00e1ch th\u1ef1c thi shell script<\/strong><\/a><\/p><\/blockquote>\n<h3><b>Giai \u0111o\u1ea1n 3: T\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u1ef1 \u0111\u1ed9ng h\u00f3a t\u00e1c v\u1ee5:<\/b><span style=\"font-weight: 400;\"> Vi\u1ebft c\u00e1c script \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng sao l\u01b0u d\u1eef li\u1ec7u, c\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m, ho\u1eb7c ki\u1ec3m tra t\u00ecnh tr\u1ea1ng h\u1ec7 th\u1ed1ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u1eadp l\u1ecbch t\u00e1c v\u1ee5:<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng cron \u0111\u1ec3 l\u00ean l\u1ecbch th\u1ef1c thi c\u00e1c script v\u00e0o th\u1eddi gian c\u1ee5 th\u1ec3. Hi\u1ec3u c\u00fa ph\u00e1p c\u1ee7a crontab v\u00e0 c\u00e1c t\u00f9y ch\u1ecdn l\u1eadp l\u1ecbch kh\u00e1c nh\u01b0 systemd timers.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Gi\u00e1m s\u00e1t h\u1ec7 th\u1ed1ng:<\/b><span style=\"font-weight: 400;\"> Vi\u1ebft c\u00e1c script \u0111\u1ec3 theo d\u00f5i t\u00e0i nguy\u00ean h\u1ec7 th\u1ed1ng nh\u01b0 CPU, b\u1ed9 nh\u1edb, v\u00e0 \u0111\u0129a, v\u00e0 g\u1eedi c\u1ea3nh b\u00e1o khi c\u1ea7n thi\u1ebft. S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 top, htop, free, df, du v\u00e0 k\u1ebft h\u1ee3p ch\u00fang trong script.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Qu\u1ea3n l\u00fd ng\u01b0\u1eddi d\u00f9ng v\u00e0 nh\u00f3m:<\/b><span style=\"font-weight: 400;\"> T\u1ea1o v\u00e0 qu\u1ea3n l\u00fd t\u00e0i kho\u1ea3n ng\u01b0\u1eddi d\u00f9ng, nh\u00f3m, v\u00e0 ph\u00e2n quy\u1ec1n truy c\u1eadp th\u00f4ng qua c\u00e1c script. S\u1eed d\u1ee5ng c\u00e1c l\u1ec7nh nh\u01b0 useradd, userdel, groupadd, usermod, v\u00e0 passwd.<\/span><\/li>\n<\/ul>\n<h3><b>Giai \u0111o\u1ea1n 4: N\u00e2ng cao v\u00e0 t\u1ed1i \u01b0u h\u00f3a<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u1eed l\u00fd l\u1ed7i v\u00e0 g\u1ee1 l\u1ed7i:<\/b><span style=\"font-weight: 400;\"> H\u1ecdc c\u00e1ch x\u1eed l\u00fd l\u1ed7i trong script v\u00e0 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 set -x, trap \u0111\u1ec3 g\u1ee1 l\u1ed7i hi\u1ec7u qu\u1ea3. Hi\u1ec3u c\u00e1ch s\u1eed d\u1ee5ng try-catch t\u01b0\u01a1ng \u0111\u01b0\u01a1ng b\u1eb1ng c\u00e1ch k\u1ebft h\u1ee3p trap v\u1edbi exit codes.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u1ed1i \u01b0u h\u00f3a script:<\/b><span style=\"font-weight: 400;\"> C\u1ea3i thi\u1ec7n hi\u1ec7u su\u1ea5t c\u1ee7a script b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c k\u1ef9 thu\u1eadt nh\u01b0 x\u1eed l\u00fd song song, gi\u1ea3m thi\u1ec3u vi\u1ec7c \u0111\u1ecdc\/ghi t\u1ec7p kh\u00f4ng c\u1ea7n thi\u1ebft. H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng &amp;, wait v\u00e0 subshells \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 \u0111\u1ed3ng th\u1eddi.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u00edch h\u1ee3p v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 kh\u00e1c:<\/b><span style=\"font-weight: 400;\"> K\u1ebft h\u1ee3p shell script v\u1edbi c\u00e1c c\u00f4ng c\u1ee5 nh\u01b0 curl, wget, ssh, scp \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 ph\u1ee9c t\u1ea1p h\u01a1n. S\u1eed d\u1ee5ng jq \u0111\u1ec3 x\u1eed l\u00fd JSON, xmlstarlet cho XML.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>H\u1ecdc h\u1ecfi t\u1eeb c\u1ed9ng \u0111\u1ed3ng:<\/b><span style=\"font-weight: 400;\"> Tham gia v\u00e0o c\u00e1c di\u1ec5n \u0111\u00e0n, nh\u00f3m tr\u1ef1c tuy\u1ebfn \u0111\u1ec3 chia s\u1ebb v\u00e0 h\u1ecdc h\u1ecfi kinh nghi\u1ec7m t\u1eeb nh\u1eefng ng\u01b0\u1eddi c\u00f3 kinh nghi\u1ec7m. \u0110\u1ecdc v\u00e0 ph\u00e2n t\u00edch c\u00e1c script ngu\u1ed3n m\u1edf \u0111\u1ec3 h\u1ecdc h\u1ecfi c\u00e1c k\u1ef9 thu\u1eadt v\u00e0 ph\u01b0\u01a1ng ph\u00e1p hay.<\/span><\/li>\n<\/ul>\n<h3><b>Giai \u0111o\u1ea1n 5: Th\u1ef1c h\u00e0nh v\u00e0 \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u00e2y d\u1ef1ng d\u1ef1 \u00e1n c\u00e1 nh\u00e2n<\/b><span style=\"font-weight: 400;\">: \u00c1p d\u1ee5ng ki\u1ebfn th\u1ee9c \u0111\u00e3 h\u1ecdc \u0111\u1ec3 x\u00e2y d\u1ef1ng c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf nh\u01b0 h\u1ec7 th\u1ed1ng sao l\u01b0u t\u1ef1 \u0111\u1ed9ng, c\u00f4ng c\u1ee5 ph\u00e2n t\u00edch log, ho\u1eb7c script qu\u1ea3n l\u00fd c\u1ea5u h\u00ecnh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>T\u00edch h\u1ee3p v\u1edbi CI\/CD<\/b><span style=\"font-weight: 400;\">: H\u1ecdc c\u00e1ch s\u1eed d\u1ee5ng shell script trong c\u00e1c pipeline CI\/CD v\u1edbi c\u00e1c n\u1ec1n t\u1ea3ng nh\u01b0 Jenkins, GitHub Actions, ho\u1eb7c GitLab CI.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Vi\u1ebft t\u00e0i li\u1ec7u v\u00e0 chia s\u1ebb<\/b><span style=\"font-weight: 400;\">: T\u1eadp th\u00f3i quen vi\u1ebft t\u00e0i li\u1ec7u chi ti\u1ebft cho c\u00e1c script v\u00e0 chia s\u1ebb v\u1edbi c\u1ed9ng \u0111\u1ed3ng \u0111\u1ec3 nh\u1eadn ph\u1ea3n h\u1ed3i v\u00e0 c\u1ea3i thi\u1ec7n.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Tai_nguyen_hoc_lap_trinh_shell\"><\/span><b>T\u00e0i nguy\u00ean h\u1ecdc l\u1eadp tr\u00ecnh shell<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>S\u00e1ch v\u1ec1 shell Scripting<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>&#8220;<\/b><a href=\"https:\/\/www.google.com.vn\/books\/edition\/Learning_the_Bash_Shell\/cEtmZlLzlwsC\" target=\"_blank\" rel=\"noopener\"><b>Learning the Bash shell<\/b><\/a><b>&#8220;<\/b><span style=\"font-weight: 400;\"> c\u1ee7a Cameron Newham: \u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng cu\u1ed1n s\u00e1ch kinh \u0111i\u1ec3n v\u1ec1 Bash shell, gi\u00fap b\u1ea1n t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao trong vi\u1ec7c vi\u1ebft v\u00e0 t\u1ed1i \u01b0u h\u00f3a shell script.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>&#8220;<\/b><a href=\"https:\/\/linuxcommand.org\/tlcl.php\" target=\"_blank\" rel=\"noopener\"><b>The Linux Command Line<\/b><\/a><b>&#8220;<\/b><span style=\"font-weight: 400;\"> c\u1ee7a William Shotts: Cu\u1ed1n s\u00e1ch n\u00e0y cung c\u1ea5p h\u01b0\u1edbng d\u1eabn chi ti\u1ebft cho ng\u01b0\u1eddi m\u1edbi b\u1eaft \u0111\u1ea7u, v\u1edbi r\u1ea5t nhi\u1ec1u v\u00ed d\u1ee5 v\u1ec1 l\u1ec7nh d\u00f2ng l\u1ec7nh v\u00e0 shell scripting.<\/span><\/li>\n<\/ul>\n<h3><b>C\u00e1c kh\u00f3a h\u1ecdc tr\u1ef1c tuy\u1ebfn<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ed9t s\u1ed1 kho\u00e1 h\u1ecdc b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o nh\u01b0:<\/span><\/p>\n<p><b>Udemy:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/www.udemy.com\/course\/bash-shell-scripting-crash-course-for-beginners\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Bash shell Scripting: Crash Course For Beginners:<\/span><\/a><span style=\"font-weight: 400;\"> Kh\u00f3a h\u1ecdc n\u00e0y cung c\u1ea5p t\u1eeb nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n v\u1ec1 shell Scripting \u0111\u1ebfn c\u00e1c \u1ee9ng d\u1ee5ng n\u00e2ng cao cho l\u1eadp tr\u00ecnh vi\u00ean.<\/span><\/li>\n<li><a href=\"https:\/\/www.udemy.com\/course\/linux-shell-scripting-projects\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Linux shell Scripting: A Project-Based Approach to Learning<\/span><\/a><span style=\"font-weight: 400;\">: Kh\u00f3a h\u1ecdc n\u00e0y gi\u00fap h\u1ecdc shell scripting th\u00f4ng qua vi\u1ec7c l\u00e0m c\u00e1c d\u1ef1 \u00e1n th\u1ef1c t\u1ebf. B\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c h\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1ch s\u1eed d\u1ee5ng shell scripting \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c nhi\u1ec7m v\u1ee5 qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng.<\/span><\/li>\n<li><a href=\"https:\/\/www.udemy.com\/course\/linux-kernel-filesystem-development\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Linux Kernel Filesystem Development:<\/span><\/a><span style=\"font-weight: 400;\"> Kho\u00e1 \u0111\u00e0o t\u1ea1o chuy\u00ean s\u00e2u d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m v\u1edbi h\u1ec7 \u0111i\u1ec1u h\u00e0nh Linux v\u00e0 mu\u1ed1n \u0111\u1ea1t ch\u1ee9ng ch\u1ec9 LPIC-2 c\u1ee7a Linux Professional Institute (LPI).<\/span><\/li>\n<\/ul>\n<p><b>Coursera:<\/b><\/p>\n<ul>\n<li><a href=\"https:\/\/www.coursera.org\/learn\/hands-on-introduction-to-linux-commands-and-shell-scripting\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Hands on introduction to linux commands and shell scripting<\/span><\/a><span style=\"font-weight: 400;\"> c\u1ee7a IBM: Kho\u00e1 h\u1ecdc v\u1ec1 c\u00e1c kh\u00e1i ni\u1ec7m v\u1ec1 h\u1ec7 \u0111i\u1ec1u h\u00e0nh Linux v\u00e0 c\u00e1ch s\u1eed d\u1ee5ng shell c\u01a1 b\u1ea3n.<\/span><\/li>\n<li><a href=\"https:\/\/www.coursera.org\/learn\/linux-for-developers\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Linux for Developers<\/span><\/a><span style=\"font-weight: 400;\">: Kh\u00f3a h\u1ecdc n\u00e0y bao g\u1ed3m c\u00e1c k\u1ef9 n\u0103ng l\u1eadp tr\u00ecnh shell, qu\u1ea3n l\u00fd t\u1ec7p v\u00e0 c\u00e1c k\u1ef9 thu\u1eadt qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng c\u01a1 b\u1ea3n, gi\u00fap b\u1ea1n n\u1eafm v\u1eefng c\u00e1c c\u00f4ng c\u1ee5 v\u00e0 l\u1ec7nh trong Linux, v\u00e0 h\u01b0\u1edbng t\u1edbi nh\u1eefng ng\u01b0\u1eddi l\u1eadp tr\u00ecnh vi\u00ean c\u1ea7n s\u1eed d\u1ee5ng h\u1ec7 \u0111i\u1ec1u h\u00e0nh Linux trong c\u00f4ng vi\u1ec7c.<\/span><\/li>\n<li><a href=\"https:\/\/www.coursera.org\/learn\/packt-advanced-exploitation-and-scripting-techniques-edpee\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Advanced Exploitation and Scripting Techniques<\/span><\/a><span style=\"font-weight: 400;\">: Ch\u01b0\u01a1ng tr\u00ecnh n\u00e2ng cao d\u00e0nh cho nh\u1eefng ng\u01b0\u1eddi \u0111\u00e3 c\u00f3 kinh nghi\u1ec7m trong l\u0129nh v\u1ef1c ethical hacking v\u00e0 mu\u1ed1n ph\u00e1t tri\u1ec3n k\u1ef9 n\u0103ng khai th\u00e1c v\u00e0 l\u1eadp tr\u00ecnh script.<\/span><\/li>\n<\/ul>\n<h3><b>Website v\u00e0 Blog<\/b><\/h3>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>LinuxCommand.org<\/b><span style=\"font-weight: 400;\">: H\u01b0\u1edbng d\u1eabn s\u1eed d\u1ee5ng l\u1ec7nh Linux c\u01a1 b\u1ea3n, c\u0169ng nh\u01b0 c\u00e1ch vi\u1ebft c\u00e1c script \u0111\u01a1n gi\u1ea3n cho c\u00e1c t\u00e1c v\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Stack Overflow<\/b><span style=\"font-weight: 400;\">: L\u00e0 n\u01a1i b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1eb7t c\u00e2u h\u1ecfi v\u00e0 t\u00ecm th\u1ea5y h\u00e0ng ngh\u00ecn c\u00e2u tr\u1ea3 l\u1eddi li\u00ean quan \u0111\u1ebfn shell scripting.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Mot_so_meo_giup_hoc_lap_trinh_shell_hieu_qua_hon\"><\/span><b>M\u1ed9t s\u1ed1 m\u1eb9o gi\u00fap h\u1ecdc l\u1eadp tr\u00ecnh shell hi\u1ec7u qu\u1ea3 h\u01a1n<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean<\/b><span style=\"font-weight: 400;\">: Th\u1ef1c h\u00e0nh l\u00e0 c\u00e1ch nhanh nh\u1ea5t \u0111\u1ec3 n\u1eafm v\u1eefng shell scripting v\u00e0 ta c\u1ea7n th\u1ef1c h\u00e0nh \u0111\u1ec1u \u0111\u1eb7n. H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi c\u00e1c t\u00e1c v\u1ee5 t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u01a1 b\u1ea3n trong c\u00f4ng vi\u1ec7c h\u00e0ng ng\u00e0y r\u1ed3i d\u1ea7n m\u00e0y m\u00f2 c\u00e1c t\u00e1c v\u1ee5 ph\u1ee9c t\u1ea1p h\u01a1n. B\u00ean c\u1ea1nh \u0111\u00f3 b\u1ea1n c\u00f3 th\u1ec3 t\u00ecm c\u00e1c b\u00e0i t\u1eadp shell scripting tr\u1ef1c tuy\u1ebfn v\u00e0 th\u1ef1c h\u00e0nh \u0111\u1ec3 hi\u1ec3u r\u00f5 c\u00e1ch c\u00e1c l\u1ec7nh v\u00e0 c\u00e2u l\u1ec7nh ho\u1ea1t \u0111\u1ed9ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tham kh\u1ea3o c\u00e1c script c\u00f3 s\u1eb5n<\/b><span style=\"font-weight: 400;\">: B\u1ea1n c\u00f3 th\u1ec3 t\u00ecm \u0111\u1ecdc c\u00e1c script t\u1eeb c\u00e1c d\u1ef1 \u00e1n m\u00e3 ngu\u1ed3n m\u1edf \u0111\u1ec3 tham kh\u1ea3o th\u00eam c\u00e1ch vi\u1ebft.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 h\u1ed7 tr\u1ee3<\/b><span style=\"font-weight: 400;\">: M\u1ed9t s\u1ed1 c\u00f4ng c\u1ee5 nh\u01b0 IDE, bashdb c\u00f3 th\u1ec3 gi\u00fap \u00edch b\u1ea1n trong vi\u1ec7c g\u1ee1 l\u1ed7i script.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110\u1eb7t c\u00e2u h\u1ecfi v\u00e0 tham gia di\u1ec5n \u0111\u00e0n<\/b><span style=\"font-weight: 400;\">: Khi b\u1ea1n g\u1eb7p kh\u00f3 kh\u0103n, \u0111\u1eebng ng\u1ea7n ng\u1ea1i \u0111\u1eb7t c\u00e2u h\u1ecfi. M\u1ed9t s\u1ed1 c\u1ed9ng \u0111\u1ed3ng nh\u01b0 Stack Overflow, Reddit hay c\u00e1c nh\u00f3m tr\u00ean GitHub c\u00f3 th\u1ec3 gi\u00fap b\u1ea1n gi\u1ea3i quy\u1ebft nhanh ch\u00f3ng c\u00e1c v\u1ea5n \u0111\u1ec1 b\u1ea1n g\u1eb7p ph\u1ea3i. V\u00e0 khi b\u1ea1n gi\u1ea3i quy\u1ebft \u0111\u01b0\u1ee3c m\u1ed9t v\u1ea5n \u0111\u1ec1 n\u00e0o \u0111\u00f3, \u0111\u1eebng qu\u00ean chia s\u1ebb l\u1ea1i \u0111\u1ec3 gi\u00fap \u0111\u1ee1 nh\u1eefng ng\u01b0\u1eddi kh\u00e1c.<\/span><\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Cau_hoi_thuong_gap_ve_lap_trinh_shell\"><\/span><b>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p v\u1ec1 l\u1eadp tr\u00ecnh shell<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><b>T\u1ea1i sao n\u00ean h\u1ecdc l\u1eadp tr\u00ecnh shell?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">L\u1eadp tr\u00ecnh shell mang l\u1ea1i r\u1ea5t nhi\u1ec1u l\u1ee3i \u00edch, \u0111\u1eb7c bi\u1ec7t trong vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 t\u1ed1i \u01b0u h\u00f3a c\u00f4ng vi\u1ec7c tr\u00ean h\u1ec7 th\u1ed1ng. Vi\u1ec7c h\u1ecdc shell scripting gi\u00fap b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m thi\u1ec3u c\u00f4ng vi\u1ec7c th\u1ee7 c\u00f4ng, t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i v\u00e0 ti\u1ebft ki\u1ec7m th\u1eddi gian. \u0110\u1eb7c bi\u1ec7t, shell scripting c\u00f3 s\u1eb5n tr\u00ean h\u1ea7u h\u1ebft c\u00e1c h\u1ec7 th\u1ed1ng Unix\/Linux m\u00e0 kh\u00f4ng c\u1ea7n c\u00e0i \u0111\u1eb7t th\u00eam, gi\u00fap d\u1ec5 d\u00e0ng tri\u1ec3n khai m\u00e0 kh\u00f4ng g\u1eb7p ph\u1ea3i c\u00e1c v\u1ea5n \u0111\u1ec1 v\u1ec1 c\u00e0i \u0111\u1eb7t.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u1eadp tr\u00ecnh shell c\u00f2n r\u1ea5t h\u1eefu \u00edch \u0111\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi l\u00e0m vi\u1ec7c trong c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 qu\u1ea3n tr\u1ecb h\u1ec7 th\u1ed1ng, DevOps, ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m ho\u1eb7c b\u1ea5t k\u1ef3 c\u00f4ng vi\u1ec7c n\u00e0o c\u1ea7n t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 tr\u00ean h\u1ec7 th\u1ed1ng. C\u00e1c system admin th\u01b0\u1eddng s\u1eed d\u1ee5ng shell script \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng sao l\u01b0u, ki\u1ec3m tra tr\u1ea1ng th\u00e1i h\u1ec7 th\u1ed1ng, qu\u1ea3n l\u00fd ng\u01b0\u1eddi d\u00f9ng v\u00e0 nhi\u1ec1u t\u00e1c v\u1ee5 kh\u00e1c. Shell script c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong DevOps \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng tri\u1ec3n khai \u1ee9ng d\u1ee5ng v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng.<\/span><\/p>\n<h3><b>C\u1ea7n ph\u1ea3i bi\u1ebft g\u00ec tr\u01b0\u1edbc khi h\u1ecdc l\u1eadp tr\u00ecnh shell?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Tr\u01b0\u1edbc khi h\u1ecdc l\u1eadp tr\u00ecnh shell, b\u1ea1n n\u00ean c\u00f3 ki\u1ebfn th\u1ee9c c\u01a1 b\u1ea3n v\u1ec1 h\u1ec7 \u0111i\u1ec1u h\u00e0nh Unix-like, \u0111\u1eb7c bi\u1ec7t l\u00e0 c\u00e1c l\u1ec7nh d\u00f2ng l\u1ec7nh (command line). Ngo\u00e0i ra vi\u1ec7c hi\u1ec3u c\u00e1ch l\u00e0m vi\u1ec7c v\u1edbi terminal c\u0169ng s\u1ebd gi\u00fap b\u1ea1n d\u1ec5 d\u00e0ng l\u00e0m quen v\u1edbi vi\u1ec7c vi\u1ebft c\u00e1c script v\u00e0 hi\u1ec3u c\u00e1ch c\u00e1c script th\u1ef1c thi tr\u00ean h\u1ec7 th\u1ed1ng.<\/span><\/p>\n<h3><b>L\u1eadp tr\u00ecnh shell c\u00f3 th\u1ec3 thay th\u1ebf c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c kh\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Shell script kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 thay th\u1ebf c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh m\u1ea1nh m\u1ebb nh\u01b0 Python, Java hay C, nh\u01b0ng n\u00f3 r\u1ea5t h\u1eefu \u00edch trong vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 h\u1ec7 th\u1ed1ng v\u00e0 x\u1eed l\u00fd c\u00e1c c\u00f4ng vi\u1ec7c l\u1eb7p l\u1ea1i. N\u1ebfu b\u1ea1n c\u1ea7n th\u1ef1c hi\u1ec7n c\u00e1c t\u00e1c v\u1ee5 h\u1ec7 th\u1ed1ng ho\u1eb7c qu\u1ea3n l\u00fd file, shell script s\u1ebd l\u00e0 c\u00f4ng c\u1ee5 r\u1ea5t hi\u1ec7u qu\u1ea3. Tuy nhi\u00ean, n\u1ebfu b\u1ea1n c\u1ea7n x\u00e2y d\u1ef1ng \u1ee9ng d\u1ee5ng ph\u1ee9c t\u1ea1p, c\u00e1c ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh kh\u00e1c s\u1ebd ph\u00f9 h\u1ee3p h\u01a1n.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Tong_ket\"><\/span><b>T\u1ed5ng k\u1ebft<\/b><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">T\u00f3m l\u1ea1i, h\u1ecdc l\u1eadp tr\u00ecnh shell s\u1ebd m\u1edf ra nhi\u1ec1u c\u01a1 h\u1ed9i ngh\u1ec1 nghi\u1ec7p kh\u00e1c nhau. V\u1edbi l\u1ed9 tr\u00ecnh h\u1ecdc r\u00f5 r\u00e0ng v\u00e0 c\u00e1c t\u00e0i nguy\u00ean h\u1eefu \u00edch, b\u1ea1n c\u00f3 th\u1ec3 d\u1ea7n d\u1ea7n ti\u1ebfn b\u1ed9 t\u1eeb nh\u1eefng kh\u00e1i ni\u1ec7m c\u01a1 b\u1ea3n cho \u0111\u1ebfn c\u00e1c k\u1ef9 thu\u1eadt l\u1eadp tr\u00ecnh ph\u1ee9c t\u1ea1p h\u01a1n. H\u00e3y ki\u00ean nh\u1eabn v\u00e0 th\u1ef1c h\u00e0nh th\u01b0\u1eddng xuy\u00ean, b\u1edfi l\u1eadp tr\u00ecnh shell l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u1ef1c k\u1ef3 m\u1ea1nh m\u1ebd gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m th\u1eddi gian v\u00e0 c\u1ea3i thi\u1ec7n hi\u1ec7u qu\u1ea3 c\u00f4ng vi\u1ec7c.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">ITviec hy v\u1ecdng b\u00e0i vi\u1ebft n\u00e0y s\u1ebd l\u00e0 ngu\u1ed3n th\u00f4ng tin h\u1eefu \u00edch gi\u00fap b\u1ea1n tr\u00ean h\u00e0nh tr\u00ecnh chinh ph\u1ee5c l\u1eadp tr\u00ecnh shell.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u1eadp tr\u00ecnh shell c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m m\u1edbi m\u1ebb, nh\u01b0ng th\u1ef1c t\u1ebf \u0111\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 v\u00f4 c\u00f9ng m\u1ea1nh m\u1ebd v\u00e0 h\u1eefu \u00edch trong vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 v\u00e0 qu\u1ea3n l\u00fd h\u1ec7 th\u1ed1ng. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh r\u00f5 m\u1ee5c ti\u00eau h\u1ecdc l\u1eadp tr\u00ecnh shell v\u00e0 [&hellip;]<\/p>\n","protected":false},"author":209,"featured_media":86894,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_gspb_post_css":"","footnotes":""},"categories":[109],"tags":[],"class_list":["post-86810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-chuyen-mon-it"],"blocksy_meta":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.8 (Yoast SEO v27.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>5 b\u01b0\u1edbc h\u1ecdc l\u1eadp tr\u00ecnh Shell b\u00e0i b\u1ea3n nh\u1ea5t v\u00e0 t\u00e0i li\u1ec7u chi ti\u1ebft - ITviec Blog<\/title>\n<meta name=\"description\" content=\"H\u1ecdc l\u1eadp tr\u00ecnh shell t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao v\u1edbi l\u1ed9 tr\u00ecnh chi ti\u1ebft. T\u00ecm hi\u1ec3u c\u00e1c b\u01b0\u1edbc, t\u00e0i nguy\u00ean h\u1eefu \u00edch v\u00e0 m\u1eb9o h\u1ecdc shell script nhanh.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"5 b\u01b0\u1edbc h\u1ecdc l\u1eadp tr\u00ecnh Shell b\u00e0i b\u1ea3n nh\u1ea5t v\u00e0 t\u00e0i li\u1ec7u chi ti\u1ebft\" \/>\n<meta property=\"og:description\" content=\"L\u1eadp tr\u00ecnh shell c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m m\u1edbi m\u1ebb, nh\u01b0ng th\u1ef1c t\u1ebf \u0111\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 v\u00f4 c\u00f9ng m\u1ea1nh m\u1ebd v\u00e0 h\u1eefu \u00edch trong vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 v\u00e0 qu\u1ea3n l\u00fd\" \/>\n<meta property=\"og:url\" content=\"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/\" \/>\n<meta property=\"og:site_name\" content=\"ITviec Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ITviec\" \/>\n<meta property=\"article:published_time\" content=\"2025-05-11T06:27:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/hoc-lap-trinh-shell-vippro-scaled.png\" \/>\n\t<meta property=\"og:image:width\" content=\"640\" \/>\n\t<meta property=\"og:image:height\" content=\"337\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"M\u1ef9 Duy\u00ean\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@ITviec\" \/>\n<meta name=\"twitter:site\" content=\"@ITviec\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"M\u1ef9 Duy\u00ean\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"17 ph\u00fat\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"5 b\u01b0\u1edbc h\u1ecdc l\u1eadp tr\u00ecnh Shell b\u00e0i b\u1ea3n nh\u1ea5t v\u00e0 t\u00e0i li\u1ec7u chi ti\u1ebft - ITviec Blog","description":"H\u1ecdc l\u1eadp tr\u00ecnh shell t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao v\u1edbi l\u1ed9 tr\u00ecnh chi ti\u1ebft. T\u00ecm hi\u1ec3u c\u00e1c b\u01b0\u1edbc, t\u00e0i nguy\u00ean h\u1eefu \u00edch v\u00e0 m\u1eb9o h\u1ecdc shell script nhanh.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/","og_locale":"vi_VN","og_type":"article","og_title":"5 b\u01b0\u1edbc h\u1ecdc l\u1eadp tr\u00ecnh Shell b\u00e0i b\u1ea3n nh\u1ea5t v\u00e0 t\u00e0i li\u1ec7u chi ti\u1ebft","og_description":"L\u1eadp tr\u00ecnh shell c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t kh\u00e1i ni\u1ec7m m\u1edbi m\u1ebb, nh\u01b0ng th\u1ef1c t\u1ebf \u0111\u00e2y l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 v\u00f4 c\u00f9ng m\u1ea1nh m\u1ebd v\u00e0 h\u1eefu \u00edch trong vi\u1ec7c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00e1c t\u00e1c v\u1ee5 v\u00e0 qu\u1ea3n l\u00fd","og_url":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/","og_site_name":"ITviec Blog","article_publisher":"https:\/\/www.facebook.com\/ITviec","article_published_time":"2025-05-11T06:27:44+00:00","og_image":[{"width":640,"height":337,"url":"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/hoc-lap-trinh-shell-vippro-scaled.png","type":"image\/png"}],"author":"M\u1ef9 Duy\u00ean","twitter_card":"summary_large_image","twitter_creator":"@ITviec","twitter_site":"@ITviec","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"M\u1ef9 Duy\u00ean","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"17 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#article","isPartOf":{"@id":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/"},"author":{"name":"M\u1ef9 Duy\u00ean","@id":"https:\/\/itviec.com\/blog\/#\/schema\/person\/73733c0725c7e39e696a896bd1abe2d7"},"headline":"5 b\u01b0\u1edbc h\u1ecdc l\u1eadp tr\u00ecnh Shell b\u00e0i b\u1ea3n nh\u1ea5t v\u00e0 t\u00e0i li\u1ec7u chi ti\u1ebft","datePublished":"2025-05-11T06:27:44+00:00","mainEntityOfPage":{"@id":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/"},"wordCount":4622,"publisher":{"@id":"https:\/\/itviec.com\/blog\/#organization"},"image":{"@id":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#primaryimage"},"thumbnailUrl":"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/hoc-lap-trinh-shell-vippro-scaled.png","articleSection":["Chuy\u00ean m\u00f4n IT"],"inLanguage":"vi"},{"@type":"WebPage","@id":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/","url":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/","name":"5 b\u01b0\u1edbc h\u1ecdc l\u1eadp tr\u00ecnh Shell b\u00e0i b\u1ea3n nh\u1ea5t v\u00e0 t\u00e0i li\u1ec7u chi ti\u1ebft - ITviec Blog","isPartOf":{"@id":"https:\/\/itviec.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#primaryimage"},"image":{"@id":"https:\/\/itviec.com\/blog\/hoc-lap-trinh-shell\/#primaryimage"},"thumbnailUrl":"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/05\/hoc-lap-trinh-shell-vippro-scaled.png","datePublished":"2025-05-11T06:27:44+00:00","description":"H\u1ecdc l\u1eadp tr\u00ecnh shell t\u1eeb c\u01a1 b\u1ea3n \u0111\u1ebfn n\u00e2ng cao v\u1edbi l\u1ed9 tr\u00ecnh chi ti\u1ebft. 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