{"version":"1.0","provider_name":"ITviec Blog","provider_url":"https:\/\/itviec.com\/blog","author_name":"M\u1ef9 Duy\u00ean","author_url":"https:\/\/itviec.com\/blog\/author\/my-duyen\/","title":"Shell vs Bash: Ph\u00e2n bi\u1ec7t v\u00e0 l\u1ef1a ch\u1ecdn c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"A3uvgpaR8v\"><a href=\"https:\/\/itviec.com\/blog\/shell-vs-bash\/\">Shell vs Bash: Ph\u00e2n bi\u1ec7t v\u00e0 l\u1ef1a ch\u1ecdn c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/itviec.com\/blog\/shell-vs-bash\/embed\/#?secret=A3uvgpaR8v\" width=\"600\" height=\"338\" title=\"&#8220;Shell vs Bash: Ph\u00e2n bi\u1ec7t v\u00e0 l\u1ef1a ch\u1ecdn c\u00f4ng c\u1ee5 ph\u00f9 h\u1ee3p&#8221; &#8212; ITviec Blog\" data-secret=\"A3uvgpaR8v\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/**\n * WordPress inline HTML embed\n *\n * @since 4.4.0\n * @output wp-includes\/js\/wp-embed.js\n *\n * Single line comments should not be used since they will break\n * the script when inlined in get_post_embed_html(), specifically\n * when the comments are not stripped out due to SCRIPT_DEBUG\n * being turned on.\n *\/\n(function ( window, document ) {\n\t'use strict';\n\n\t\/* Abort for ancient browsers. *\/\n\tif ( ! document.querySelector || ! window.addEventListener || typeof URL === 'undefined' ) {\n\t\treturn;\n\t}\n\n\t\/** @namespace wp *\/\n\twindow.wp = window.wp || {};\n\n\t\/* Abort if script was already executed. *\/\n\tif ( !! window.wp.receiveEmbedMessage ) {\n\t\treturn;\n\t}\n\n\t\/**\n\t * Receive embed message.\n\t *\n\t * @param {MessageEvent} e\n\t *\/\n\twindow.wp.receiveEmbedMessage = function( e ) {\n\t\tvar data = e.data;\n\n\t\t\/* Verify shape of message. *\/\n\t\tif (\n\t\t\t! ( data || data.secret || data.message || data.value ) ||\n\t\t\t\/[^a-zA-Z0-9]\/.test( data.secret )\n\t\t) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar iframes = document.querySelectorAll( 'iframe[data-secret=\"' + data.secret + '\"]' ),\n\t\t\tblockquotes = document.querySelectorAll( 'blockquote[data-secret=\"' + data.secret + '\"]' ),\n\t\t\tallowedProtocols = new RegExp( '^https?:$', 'i' ),\n\t\t\ti, source, height, sourceURL, targetURL;\n\n\t\tfor ( i = 0; i < blockquotes.length; i++ ) {\n\t\t\tblockquotes[ i ].style.display = 'none';\n\t\t}\n\n\t\tfor ( i = 0; i < iframes.length; i++ ) {\n\t\t\tsource = iframes[ i ];\n\n\t\t\tif ( e.source !== source.contentWindow ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tsource.removeAttribute( 'style' );\n\n\t\t\tif ( 'height' === data.message ) {\n\t\t\t\t\/* Resize the iframe on request. *\/\n\t\t\t\theight = parseInt( data.value, 10 );\n\t\t\t\tif ( height > 1000 ) {\n\t\t\t\t\theight = 1000;\n\t\t\t\t} else if ( ~~height < 200 ) {\n\t\t\t\t\theight = 200;\n\t\t\t\t}\n\n\t\t\t\tsource.height = height;\n\t\t\t} else if ( 'link' === data.message ) {\n\t\t\t\t\/* Link to a specific URL on request. *\/\n\t\t\t\tsourceURL = new URL( source.getAttribute( 'src' ) );\n\t\t\t\ttargetURL = new URL( data.value );\n\n\t\t\t\tif (\n\t\t\t\t\tallowedProtocols.test( targetURL.protocol ) &&\n\t\t\t\t\ttargetURL.host === sourceURL.host &&\n\t\t\t\t\tdocument.activeElement === source\n\t\t\t\t) {\n\t\t\t\t\twindow.top.location.href = data.value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n\n\tfunction onLoad() {\n\t\tvar iframes = document.querySelectorAll( 'iframe.wp-embedded-content' ),\n\t\t\ti, source, secret;\n\n\t\tfor ( i = 0; i < iframes.length; i++ ) {\n\t\t\t\/** @var {IframeElement} *\/\n\t\t\tsource = iframes[ i ];\n\n\t\t\tsecret = source.getAttribute( 'data-secret' );\n\t\t\tif ( ! secret ) {\n\t\t\t\t\/* Add secret to iframe *\/\n\t\t\t\tsecret = Math.random().toString( 36 ).substring( 2, 12 );\n\t\t\t\tsource.src += '#?secret=' + secret;\n\t\t\t\tsource.setAttribute( 'data-secret', secret );\n\t\t\t}\n\n\t\t\t\/*\n\t\t\t * Let post embed window know that the parent is ready for receiving the height message, in case the iframe\n\t\t\t * loaded before wp-embed.js was loaded. When the ready message is received by the post embed window, the\n\t\t\t * window will then (re-)send the height message right away.\n\t\t\t *\/\n\t\t\tsource.contentWindow.postMessage( {\n\t\t\t\tmessage: 'ready',\n\t\t\t\tsecret: secret\n\t\t\t}, '*' );\n\t\t}\n\t}\n\n\twindow.addEventListener( 'message', window.wp.receiveEmbedMessage, false );\n\tdocument.addEventListener( 'DOMContentLoaded', onLoad, false );\n})( window, document );\n\/\/# sourceURL=https:\/\/itviec.com\/blog\/wp-includes\/js\/wp-embed.js\n<\/script>\n","thumbnail_url":"https:\/\/itviec.com\/blog\/wp-content\/uploads\/2025\/04\/shell-vs-bash-vippro-scaled.png","thumbnail_width":640,"thumbnail_height":337,"description":"Bash v\u00e0 Shell \u0111\u1ec1u l\u00e0 nh\u1eefng c\u00f4ng c\u1ee5 quan tr\u1ecdng gi\u00fap ng\u01b0\u1eddi d\u00f9ng t\u01b0\u01a1ng t\u00e1c v\u1edbi h\u1ec7 th\u1ed1ng th\u00f4ng qua d\u00f2ng l\u1ec7nh. M\u1eb7c d\u00f9 ch\u00fang c\u00f3 v\u1ebb gi\u1ed1ng nhau, nh\u01b0ng gi\u1eefa Bash"}