{"id":6171,"date":"2023-02-19T13:30:05","date_gmt":"2023-02-19T08:00:05","guid":{"rendered":"https:\/\/trysiteprice.com\/blog\/?p=6171"},"modified":"2024-07-19T21:39:11","modified_gmt":"2024-07-19T16:09:11","slug":"xargs-how-to-control-and-use-command-line-arguments","status":"publish","type":"post","link":"https:\/\/trysiteprice.com\/blog\/xargs-how-to-control-and-use-command-line-arguments\/","title":{"rendered":"xargs: How To Control and Use Command Line Arguments"},"content":{"rendered":"<p>The <code>xargs<\/code> command is a powerful utility that enables a user to take the output of one command and pass it as arguments to another command. Here is an overview of how to control and use command-line arguments with <code>xargs<\/code>.<\/p>\n<p>The basic syntax for the <code>xargs<\/code> command is:<\/p>\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-bash\"><span class=\"hljs-built_in\">command<\/span> | xargs [options] <span class=\"hljs-built_in\">command<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<p>Here, the output of the first command (before the pipe symbol <code>|<\/code>) is passed as arguments to the second command, which is executed with those arguments.<\/p>\n<p>Some of the useful options available for <code>xargs<\/code> are:<\/p>\n<ul>\n<li><code>-n<\/code>: Specifies the number of arguments to be passed to the command.<\/li>\n<li><code>-I<\/code>: Specifies a placeholder for the argument in the command.<\/li>\n<li><code>-d<\/code>: Specifies the delimiter for the arguments.<\/li>\n<li><code>-p<\/code>: Asks for confirmation before executing the command.<\/li>\n<li><code>-r<\/code>: Prevents the command from being executed if there are no arguments.<\/li>\n<\/ul>\n<p>Here are a few examples to illustrate how to use some of these options:<\/p>\n<ol>\n<li>Use <code>xargs<\/code> to delete files that match a pattern:\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-bash\">find . -name <span class=\"hljs-string\">\"*.log\"<\/span> | xargs <span class=\"hljs-built_in\">rm<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<p>Here, the <code>find<\/code> command searches for all files that match the pattern <code>*.log<\/code> and passes them to <code>xargs<\/code>. The <code>xargs<\/code> command then calls the <code>rm<\/code> command to delete the files.<\/li>\n<li>Use <code>xargs<\/code> to rename files:\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-bash\"><span class=\"hljs-built_in\">ls<\/span> | grep <span class=\"hljs-string\">\"pattern\"<\/span> | xargs -I{} <span class=\"hljs-built_in\">mv<\/span> {} {}.new<br \/>\n<\/code><\/div>\n<\/div>\n<p>Here, the <code>ls<\/code> command lists all the files in the current directory, the <code>grep<\/code> command filters the files based on a pattern, and the output is passed to <code>xargs<\/code>. The <code>-I<\/code> option specifies a placeholder <code>{}<\/code> for the argument. The <code>mv<\/code> command then renames each file with the extension <code>.new<\/code>.<\/li>\n<li>Use <code>xargs<\/code> to search for a file:\n<div class=\"bg-black mb-4 rounded-md\">\n<div class=\"flex items-center relative text-gray-200 bg-gray-800 px-4 py-2 text-xs font-sans\"><\/div>\n<div class=\"p-4 overflow-y-auto\"><code class=\"!whitespace-pre hljs language-bash\"><span class=\"hljs-built_in\">echo<\/span> <span class=\"hljs-variable\">$PATH<\/span> | <span class=\"hljs-built_in\">tr<\/span> <span class=\"hljs-string\">\":\"<\/span> <span class=\"hljs-string\">\"\\n\"<\/span> | xargs -I{} find {} -name <span class=\"hljs-string\">\"filename\"<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<p>Here, the <code>echo<\/code> command prints the <code>PATH<\/code> environment variable, which contains a list of directories. The <code>tr<\/code> command replaces the <code>:<\/code> delimiter with a newline. The output is then passed to <code>xargs<\/code>, which runs the <code>find<\/code> command on each directory to search for the file <code>filename<\/code>.<\/li>\n<\/ol>\n<p>These are just a few examples of how <code>xargs<\/code> can be used to control and use command-line arguments. The possibilities are endless, and it is a very useful tool for shell scripting. (<a href=\"https:\/\/vivanteliving.com\/valium-in-europe-buying-online\/\">Diazepam<\/a>) <\/p>\n","protected":false},"excerpt":{"rendered":"<p>The xargs command is a powerful utility that enables a user to take the output of one command and pass it as arguments to another command. Here is an overview of how to control and use command-line arguments with xargs. The basic syntax for the xargs command is: command | xargs [options] command Here, the &#8230; <a title=\"xargs: How To Control and Use Command Line Arguments\" class=\"read-more\" href=\"https:\/\/trysiteprice.com\/blog\/xargs-how-to-control-and-use-command-line-arguments\/\" aria-label=\"Read more about xargs: How To Control and Use Command Line Arguments\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6171","post","type-post","status-publish","format-standard","hentry","category-best-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>xargs: How To Control and Use Command Line Arguments - TrySitePrice<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/trysiteprice.com\/blog\/xargs-how-to-control-and-use-command-line-arguments\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"xargs: How To Control and Use Command Line Arguments - TrySitePrice\" \/>\n<meta property=\"og:description\" content=\"The xargs command is a powerful utility that enables a user to take the output of one command and pass it as arguments to another command. 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