{"id":4032,"date":"2023-01-18T07:50:30","date_gmt":"2023-01-18T07:50:30","guid":{"rendered":"https:\/\/linuxsimply.com\/?p=4032"},"modified":"2023-12-31T06:19:55","modified_gmt":"2023-12-31T06:19:55","slug":"at-command-in-linux","status":"publish","type":"post","link":"https:\/\/linuxsimply.com\/at-command-in-linux\/","title":{"rendered":"The \u201cat\u201d Command in Linux [7 Practical Examples]"},"content":{"rendered":"<p style=\"text-align: justify;\">The <strong>at<\/strong> <strong>command<\/strong> in Linux is a command line utility tool used for <strong>scheduling one-time jobs<\/strong>. You can specify a time for executing certain tasks. Moreover, the command can also list or delete jobs that are saved for later execution. To use this command user must have the system permissions. The <strong>atq<\/strong>, <strong>atrm<\/strong>, and <strong>batch<\/strong> commands are also part of the <strong>at <\/strong>command that enables it to queue, examine, or remove scheduled jobs.<\/p>\n<p style=\"text-align: justify;\">In this article, I will present you with the possible uses of the <strong>at command in Linux<\/strong> with practical examples.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 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\">Table of Contents<\/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 eztoc-toggle-hide-by-default' ><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#Syntax_of_%E2%80%9Cat%E2%80%9D_Command\" >Syntax of &#8220;at&#8221; Command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#Options_for_%E2%80%9Cat%E2%80%9D_Command\" >Options for &#8220;at&#8221; Command<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#Installing_%E2%80%9Cat%E2%80%9D_Command_in_Linux\" >Installing \u201cat\u201d Command in Linux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#Practical_Examples_of_the_%E2%80%9Cat%E2%80%9D_Command_in_Linux\" >Practical Examples of the \u201cat\u201d Command in Linux<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#1_Scheduling_a_Job_to_Run_at_a_Certain_Time_Using_the_%E2%80%9Cat%E2%80%9D_Command\" >1. Scheduling a Job to Run at a Certain Time Using the \u201cat\u201d Command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#2_Piping_a_Job_to_the_%E2%80%9Cat%E2%80%9D_Command_to_Run_at_a_Certain_Time\" >2. Piping a Job to the \u201cat\u201d Command to Run at a Certain Time<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#3_Listing_Pending_Jobs_Using_the_%E2%80%9Cat%E2%80%9D_Command\" >3. Listing Pending Jobs Using the \u201cat\u201d Command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#4_Viewing_a_Specified_Job_Contents_Using_the_%E2%80%9Cat%E2%80%9D_Command\" >4. Viewing a Specified Job Contents Using the \u201cat\u201d Command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#5_Reading_a_Job_From_a_File_Using_the_%E2%80%9Cat%E2%80%9D_Command\" >5. Reading a Job From a File Using the \u201cat\u201d Command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#6_Scheduling_a_Job_to_Execute_When_the_System_Load_Levels_Permit\" >6. Scheduling a Job to Execute When the System Load Levels Permit<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#7_Removing_a_Specific_Job_Using_the_%E2%80%9Cat%E2%80%9D_Command\" >7. Removing a Specific Job Using the \u201cat\u201d Command<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#Time_Specification_of_%E2%80%9Cat%E2%80%9D_Command\" >Time Specification of &#8220;at&#8221; Command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#Conclusion\" >Conclusion<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#People_Also_Ask\" >People Also Ask<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#How_to_automate_a_process_in_Linux\" >How to automate a process in Linux?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#What_is_the_difference_between_at_and_batch_command\" >What is the difference between at and batch command?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#How_do_I_know_if_at_is_installed_in_Linux\" >How do I know if at is installed in Linux?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#How_do_I_install_the_at_utility_in_Linux\" >How do I install the at utility in Linux?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Syntax_of_%E2%80%9Cat%E2%80%9D_Command\"><\/span>Syntax of &#8220;at&#8221; Command<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The syntax for the <code class=\"\" data-line=\"\">at <\/code>command is:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">at [OPTION]... runtime<\/code><\/pre>\n<p style=\"text-align: justify;\"><div class=\"su-note\"  style=\"border-color:#cedfe2;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#E8F9FC;border-color:#ffffff;color:#333333;\"><strong>Note:<\/strong> In the above syntax<strong> OPTION<\/strong> enclosed by square brackets and followed by 3 dots represents that <strong>multiple options<\/strong> can be utilized simultaneously.<\/div><\/div>\n<h3><span class=\"ez-toc-section\" id=\"Options_for_%E2%80%9Cat%E2%80%9D_Command\"><\/span>Options for &#8220;at&#8221; Command<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">You can find the details of <strong>at <\/strong>command&#8217;s option on the man page of the command.<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">man at<\/code><\/pre>\n<div class=\"su-table su-table-responsive su-table-alternate su-table-fixed\">\n<table style=\"border-collapse: collapse;width: 92.7501%;height: 214px\">\n<tbody>\n<tr style=\"height: 25px\">\n<th style=\"width: 12.127%;height: 25px\">Option<\/th>\n<th style=\"width: 84.2221%;height: 25px\">Description<\/th>\n<\/tr>\n<tr style=\"height: 50px\">\n<td style=\"width: 12.127%;height: 50px\"><strong>-b<\/strong><\/td>\n<td style=\"width: 84.2221%;height: 50px\">Runs commands when system load levels permit, an alias for batch.<\/td>\n<\/tr>\n<tr style=\"height: 25px\">\n<td style=\"width: 12.127%;height: 25px\"><strong>-c<\/strong><\/td>\n<td style=\"width: 84.2221%;height: 25px\">Displays specified job context on the terminal.<\/td>\n<\/tr>\n<tr style=\"height: 25px\">\n<td style=\"width: 12.127%;height: 25px\"><strong>-f<\/strong><\/td>\n<td style=\"width: 84.2221%;height: 25px\">Reads jobs from a file.<\/td>\n<\/tr>\n<tr style=\"height: 14px\">\n<td style=\"width: 12.127%;height: 14px\"><strong>-r <\/strong>or <strong>-d<\/strong><\/td>\n<td style=\"width: 84.2221%;height: 14px\">Removes pending job specified by job ID, an alias for atrm.<\/td>\n<\/tr>\n<tr style=\"height: 25px\">\n<td style=\"width: 12.127%;height: 25px\"><strong>-l<\/strong><\/td>\n<td style=\"width: 84.2221%;height: 25px\">Lists current users\u2019 pending jobs, an alias for atq.<\/td>\n<\/tr>\n<tr style=\"height: 25px\">\n<td style=\"width: 12.127%;height: 25px\"><strong>-m<\/strong><\/td>\n<td style=\"width: 84.2221%;height: 25px\">Mails user upon completion of the job.<\/td>\n<\/tr>\n<tr style=\"height: 25px\">\n<td style=\"width: 12.127%;height: 25px\"><strong>-M<\/strong><\/td>\n<td style=\"width: 84.2221%;height: 25px\">Does not mail the user upon completion of the job.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"text-align: justify;\"><div class=\"su-note\"  style=\"border-color:#cedfe2;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#E8F9FC;border-color:#ffffff;color:#333333;\"><strong>Note:<\/strong> The <strong>options<\/strong> in Linux CLI (Command Line Interface) are all <strong>case-sensitive<\/strong>. So be cautious while using them.<\/div><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Installing_%E2%80%9Cat%E2%80%9D_Command_in_Linux\"><\/span><a id=\"install-at-command\"><\/a>Installing \u201cat\u201d Command in Linux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">The <code class=\"\" data-line=\"\">at<\/code> command may or may not be installed in your system. You can <strong>install the at package<\/strong> by following command:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">sudo apt-get install at<\/code><\/pre>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-4038\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2.png\" alt=\"Installing at command in linux.\" width=\"825\" height=\"614\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2.png 825w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-300x223.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-1024x762.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-767x571.png 767w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-1536x1143.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-2048x1524.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-202x150.png 202w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-100x74.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-470x350.png 470w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-2-788x586.png 788w\" sizes=\"(max-width: 825px) 100vw, 825px\" \/>Now, to enable the <strong>atd<\/strong> service on your system, write the following command:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">sudo systemctl enable --now atd<\/code><\/pre>\n<p style=\"text-align: justify;\"><img decoding=\"async\" class=\"aligncenter size-full wp-image-4039\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3.png\" alt=\"Enabling atd service on system.\" width=\"825\" height=\"92\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3.png 825w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-300x33.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-1024x114.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-762x85.png 762w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-1536x171.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-2048x228.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-1345x150.png 1345w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-100x11.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-3-788x87.png 788w\" sizes=\"(max-width: 825px) 100vw, 825px\" \/><div class=\"su-note\"  style=\"border-color:#cedfe2;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#E8F9FC;border-color:#ffffff;color:#333333;\"><strong>Note:<\/strong> The <strong>atd<\/strong> service is the scheduling daemon of the<strong> at<\/strong> command. It allows the <strong>at <\/strong>command to execute jobs at a later time<\/div><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Practical_Examples_of_the_%E2%80%9Cat%E2%80%9D_Command_in_Linux\"><\/span>Practical Examples of the \u201cat\u201d Command in Linux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">With the <code class=\"\" data-line=\"\">at<\/code> command in Linux you will be able to schedule\/remove commands for later execution. Moreover, You can use this command in many ways utilizing the associated options. Here are some of the most common uses of the <code class=\"\" data-line=\"\">at<\/code> command in Linux:<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Scheduling_a_Job_to_Run_at_a_Certain_Time_Using_the_%E2%80%9Cat%E2%80%9D_Command\"><\/span>1. Scheduling a Job to Run at a Certain Time Using the \u201cat\u201d Command<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">You can specify the time for executing a job using the <code class=\"\" data-line=\"\">at<\/code> command in Linux. It will read your given commands from standard input. For example, to schedule the job \u201c<strong>touch file1.txt\u201d <\/strong>(Creating an empty file) to execute later on the same day at <strong>5:00 AM,<\/strong> follow the steps:<\/p>\n<ol>\n<li>Open the terminal and run the below command:\n<pre><code class=\"language-bash\" data-line=\"\">at 05:00<\/code><\/pre>\n<\/li>\n<li>Now, write the following command as the job:\n<pre><code class=\"language-bash\" data-line=\"\">touch file1.txt<\/code><\/pre>\n<\/li>\n<li>Finally, press <strong>CTRL+D<\/strong> keys to complete the scheduling.<\/li>\n<\/ol>\n<p>In this given image, you can see that I have scheduled the desired job to execute at 5:00 AM.<img decoding=\"async\" class=\"aligncenter size-full wp-image-4040\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4.png\" alt=\"Scheduling a command using at command in linux.\" width=\"634\" height=\"159\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4.png 634w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-300x75.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-1024x257.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-766x192.png 766w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-1536x385.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-2048x514.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-598x150.png 598w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-100x25.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-1396x350.png 1396w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-4-788x197.png 788w\" sizes=\"(max-width: 634px) 100vw, 634px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_Piping_a_Job_to_the_%E2%80%9Cat%E2%80%9D_Command_to_Run_at_a_Certain_Time\"><\/span>2. Piping a Job to the \u201cat\u201d Command to Run at a Certain Time<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">You can pipe a command for later execution to the <code class=\"\" data-line=\"\">at<\/code> command in <strong>Linux<\/strong>. For example, to echo a text at a specific time, use the command below:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">echo &quot;This is a Scheduled echo&quot; | at 05:00 am<\/code><\/pre>\n<p style=\"text-align: justify;\">In the following image, you can see that I have saved the command as a job for later execution using piping along with the <code class=\"\" data-line=\"\">at<\/code> command.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4041\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5.png\" alt=\"Piping a command to schedule using at command in linux.\" width=\"825\" height=\"81\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5.png 825w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-300x29.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-1024x101.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-764x75.png 764w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-1536x151.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-2048x201.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-1528x150.png 1528w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-100x10.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-5-788x77.png 788w\" sizes=\"(max-width: 825px) 100vw, 825px\" \/><\/p>\n<hr \/>\n<p><span style=\"color: #000080; font-size: 18pt;\"><strong>Similar Readings<\/strong><\/span><\/p>\n<ul>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/man-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cman\u201d Command in Linux [6 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/history-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The &#8220;history&#8221; Command in Linux [6 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/cal-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201ccal\u201d Command in Linux [7 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/bc-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cbc\u201d Command in Linux [10+ Practical Examples]<\/a><\/strong><\/li>\n<\/ul>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"3_Listing_Pending_Jobs_Using_the_%E2%80%9Cat%E2%80%9D_Command\"><\/span>3. Listing Pending Jobs Using the \u201cat\u201d Command<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">To list all the pending jobs, use either the <code class=\"\" data-line=\"\">atq<\/code> command or the <code class=\"\" data-line=\"\">-l<\/code> option along with the <code class=\"\" data-line=\"\">at<\/code> command. For example, type any of the following commands in the command prompt:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">atq<\/code><\/pre>\n<p><strong><span style=\"color: #800080;\">Or,<\/span><\/strong><\/p>\n<pre><code class=\"language-bash\" data-line=\"\">at -l<\/code><\/pre>\n<p>You can see that all the pending jobs are listed using the <code class=\"\" data-line=\"\">atq<\/code> command.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4043 size-full\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7.png\" alt=\"Listing pending jobs using atq command in linux.\" width=\"557\" height=\"132\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7.png 557w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-300x71.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-1024x243.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-768x182.png 768w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-1536x364.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-2048x485.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-633x150.png 633w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-100x24.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-1477x350.png 1477w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-7-788x186.png 788w\" sizes=\"(max-width: 557px) 100vw, 557px\" \/>Here, all the pending jobs are listed using the <code class=\"\" data-line=\"\">at -l<\/code> command:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4042\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6.png\" alt=\"Listing pending jobs using at command in linux.\" width=\"564\" height=\"132\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6.png 564w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-300x70.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-1024x240.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-765x179.png 765w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-1536x359.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-2048x479.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-641x150.png 641w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-100x23.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-1495x350.png 1495w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-6-788x184.png 788w\" sizes=\"(max-width: 564px) 100vw, 564px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Viewing_a_Specified_Job_Contents_Using_the_%E2%80%9Cat%E2%80%9D_Command\"><\/span>4. Viewing a Specified Job Contents Using the \u201cat\u201d Command<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">To view a specific job content, use option <code class=\"\" data-line=\"\">-c <\/code>and a specific<strong> job<\/strong> <strong>ID<\/strong>. For example, to show the contents of the job having ID 5, run the command:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">at -c 5<\/code><\/pre>\n<p>In the image, you can see that\u00a0 the contents of the job with ID <strong>5<\/strong>.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4044\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8.png\" alt=\"Viewing job contents using at command in linux.\" width=\"825\" height=\"432\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8.png 825w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-300x157.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-1024x536.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-768x402.png 768w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-1536x804.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-2048x1072.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-286x150.png 286w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-100x52.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-668x350.png 668w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-8-788x412.png 788w\" sizes=\"(max-width: 825px) 100vw, 825px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_Reading_a_Job_From_a_File_Using_the_%E2%80%9Cat%E2%80%9D_Command\"><\/span>5. Reading a Job From a File Using the \u201cat\u201d Command<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">To read a job from a file, use the <code class=\"\" data-line=\"\">-f<\/code> option with <code class=\"\" data-line=\"\">at<\/code> command. For example, you have a file named \u201cjobs.txt\u201d to execute commands at this instant. To do the that use the below command:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">at -f jobs.txt now<\/code><\/pre>\n<p style=\"text-align: justify;\">In the image below, you can see that the \u201cjobs.txt\u201d file contains commands for creating folder1 and folder2. These commands are executed using the <code class=\"\" data-line=\"\">at <\/code>command. You can use the <code class=\"\" data-line=\"\">ls<\/code> command to see the newly created folders.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4045\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9.png\" alt=\"Reading job from a file using at command in linux.\" width=\"670\" height=\"260\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9.png 670w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-300x116.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-1024x397.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-768x298.png 768w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-1536x596.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-2048x795.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-387x150.png 387w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-100x39.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-902x350.png 902w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-9-788x305.png 788w\" sizes=\"(max-width: 670px) 100vw, 670px\" \/><\/p>\n<hr \/>\n<p><span style=\"color: #000080; font-size: 18pt;\"><strong>Similar Readings<\/strong><\/span><\/p>\n<ul>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/cron-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201ccron\u201d Command in Linux [3 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/crontab-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201ccrontab\u201d Command in Linux [10 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/date-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cdate\u201d Command in Linux [8+ Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/ncal-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cncal\u201d Command in Linux [8 Practical Examples]<\/a><\/strong><\/li>\n<\/ul>\n<hr \/>\n<h3><span class=\"ez-toc-section\" id=\"6_Scheduling_a_Job_to_Execute_When_the_System_Load_Levels_Permit\"><\/span>6. Scheduling a Job to Execute When the System Load Levels Permit<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">By default, option <code class=\"\" data-line=\"\">-b<\/code> permits the execution of commands when the average load is below <strong>1.5<\/strong>. That is, one process is running while another one is waiting for 50% of the time. This option is an <strong>alias<\/strong> for the <code class=\"\" data-line=\"\">batch <\/code>command. Now, let&#8217;s say, you want to schedule the job \u201c<strong>touch file5<\/strong>\u201d (Creating empty files) to execute when the average load is below <strong>1.5<\/strong>. To do so, follow the steps below.<\/p>\n<ol>\n<li>Open the terminal and type any of the following commands:\n<pre><code class=\"language-bash\" data-line=\"\">at -b<\/code><\/pre>\n<p><span style=\"color: #800080;\"><strong>Or,<\/strong><\/span><\/p>\n<pre><code class=\"language-bash\" data-line=\"\">batch<\/code><\/pre>\n<\/li>\n<li>Press the <strong>ENTER<\/strong> button.<\/li>\n<li>Now, write the following command as the job:\n<pre><code class=\"language-bash\" data-line=\"\">touch file5<\/code><\/pre>\n<\/li>\n<li>Finally, press <strong>CTRL+D<\/strong> keys to complete scheduling.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\">In the following image, you can see that the desired command is scheduled to execute when the system load level permits.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4046\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10.png\" alt=\"Scheduling a job when system load permits using at command in linux.\" width=\"460\" height=\"132\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10.png 460w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-300x86.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-1024x294.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-767x220.png 767w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-1536x441.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-2048x588.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-523x150.png 523w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-100x29.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-1220x350.png 1220w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-10-788x226.png 788w\" sizes=\"(max-width: 460px) 100vw, 460px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_Removing_a_Specific_Job_Using_the_%E2%80%9Cat%E2%80%9D_Command\"><\/span>7. Removing a Specific Job Using the \u201cat\u201d Command<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">To remove a specific job from the scheduled list, use the <strong>job<\/strong> <strong>ID<\/strong> along with the options <code class=\"\" data-line=\"\">-r<\/code> or <code class=\"\" data-line=\"\">-d<\/code>. Moreover, using the command <code class=\"\" data-line=\"\">atrm<\/code> with a specific <strong>job ID<\/strong> will also give you the same result. For example, to remove the job with <strong>ID 3<\/strong> using the <strong>atrm<\/strong> command, use any of the following commands:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">atrm 3<\/code><\/pre>\n<p><span style=\"color: #800080;\"><strong>Or,<\/strong><\/span><\/p>\n<pre><code class=\"language-bash\" data-line=\"\">at -r 3<\/code><\/pre>\n<p><span style=\"color: #800080;\"><strong>Or,<\/strong><\/span><\/p>\n<pre><code class=\"language-bash\" data-line=\"\">at -d 3<\/code><\/pre>\n<p>In the image below, you can see Job 3 is removed.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4047\" src=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11.png\" alt=\"Removing a pending job using at command in linux.\" width=\"638\" height=\"261\" srcset=\"https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11.png 638w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-300x123.png 300w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-1024x419.png 1024w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-768x314.png 768w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-1536x628.png 1536w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-2048x838.png 2048w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-367x150.png 367w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-100x41.png 100w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-856x350.png 856w, https:\/\/linuxsimply.com\/wp-content\/uploads\/2023\/01\/at-command-in-linux-11-788x322.png 788w\" sizes=\"(max-width: 638px) 100vw, 638px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Time_Specification_of_%E2%80%9Cat%E2%80%9D_Command\"><\/span>Time Specification of &#8220;at&#8221; Command<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">The time structure of <code class=\"\" data-line=\"\">at<\/code> command is &#8220;Day Month Date hh:mm:ss Year&#8221;. The time specifications and their relative translation of at command are below:<\/p>\n<div class=\"su-table su-table-responsive su-table-alternate su-table-fixed\">\n<table style=\"height: 812px;width: 100%\">\n<tbody>\n<tr style=\"height: 58px\">\n<th style=\"width: 49.5868%;height: 58px\" width=\"301\"><strong>Time Specifications<\/strong><\/th>\n<th style=\"width: 49.2562%;height: 58px\" width=\"301\"><strong>Translated Time<\/strong><\/th>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">now<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Tue Jan 17 07:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">noon<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Tue Jan 17 12:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">teatime<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Tue Jan 17 16:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">midnight<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Wed Jan 18 00:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">Tomorrow <span style=\"color: #800080\">Or,<\/span> now + 1 day<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Wed Jan 18 07:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">Fri<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Fri Jan 20 07:05:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">next week <span style=\"color: #800080\">Or,<\/span> now + 7days Or, next Tue<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Tue Jan 24 07:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">next month <span style=\"color: #800080\">Or,<\/span> now + 1 month<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Fri Feb 17 07:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">08:00 Or, 08:00 AM <span style=\"color: #800080\">Or, <\/span>now + 1hour<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Tue Jan 17 08:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">08:00 PM<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Tue Jan 17 20:00:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">2:30 PM Feb 23 <span style=\"color: #800080\">Or,<\/span> 2:30 PM 23.02.23<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Thu Feb 23 14:30:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">now + 30 minutes<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Tue Jan 17 07:30:00 2023<\/td>\n<\/tr>\n<tr style=\"height: 58px\">\n<td style=\"width: 49.5868%;height: 58px;vertical-align: middle\" width=\"301\">now + 1 year<\/td>\n<td style=\"width: 49.2562%;height: 58px;vertical-align: middle\" width=\"301\">Wed Jan 17 07:00:00 2024<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>Conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">In this article, I have tried to show you some frequent uses of the <strong>at <\/strong>command in Linux. The options available under this <strong>at<\/strong> command work as alternatives to a few other commands. That is why the commands <strong>atq<\/strong>, <strong>atrm<\/strong>, and <strong>batch<\/strong> are considered as a part of the <strong>at<\/strong> command. I hope these practical examples of the <code class=\"\" data-line=\"\">at<\/code> command described here, will help you with the command line and make you a power user of Linux.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"People_Also_Ask\"><\/span>People Also Ask<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"How_to_automate_a_process_in_Linux\"><\/span>How to automate a process in Linux?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">The at command in Linux is a useful tool that allows you to schedule commands to be executed at a specific time in the future. To create a new job with the at command, you need to enter the time and date when you want the command to run, followed by a space and then the command itself. You can also pipe the command from another program or file using echo or Here document. For example:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">echo &quot;date&quot; | at 10:00<\/code><\/pre>\n<p>This will create a job that will run the date command at 10:00 AM.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_at_and_batch_command\"><\/span>What is the difference between at and batch command?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p style=\"text-align: justify;\">The <code class=\"\" data-line=\"\">at<\/code> command is great for scheduling one-time tasks that need to run at a particular time, while <code class=\"\" data-line=\"\">batch<\/code> is suitable for running tasks when the system has free resources to ensure minimal impact on the system\u2019s performance. Some key differences:<\/p>\n<p><strong>at Command:<\/strong><\/p>\n<ol>\n<li>It schedules a command or a set of commands to run once at a specific time.<\/li>\n<li>You can specify the exact date and time for the execution of the task.<\/li>\n<li>The output of the command is mailed to the user after execution.<\/li>\n<\/ol>\n<p><strong>batch Command:<\/strong><\/p>\n<ol>\n<li>It schedules tasks to be executed when the system load average drops below a certain level (usually 1.5).<\/li>\n<li>Unlike at, it does not run at a specific time but waits until the system is less busy.<\/li>\n<li>You can only use the batch command interactively, adding commands to the queue.<\/li>\n<\/ol>\n<h3><span class=\"ez-toc-section\" id=\"How_do_I_know_if_at_is_installed_in_Linux\"><\/span>How do I know if at is installed in Linux?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To check if the at command is installed on your Debian\/Ubuntu systems, use:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">sudo apt list --installed | grep at<\/code><\/pre>\n<p>For CentOS\/Fedora systems, use:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">sudo yum list installed | grep at<\/code><\/pre>\n<h3><span class=\"ez-toc-section\" id=\"How_do_I_install_the_at_utility_in_Linux\"><\/span>How do I install the at utility in Linux?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>To install the at utility package on your Debian\/Ubuntu systems, use:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">sudo apt update &amp;&amp; sudo apt install -y at<\/code><\/pre>\n<p>For CentOS\/Fedora systems, use:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">sudo yum install at<\/code><\/pre>\n<p style=\"text-align: justify;\">After installing, you should ensure that the <strong>atd<\/strong> <strong>service<\/strong>, which is the scheduling daemon for at, is running and enabled to start on boot by:<\/p>\n<pre><code class=\"language-bash\" data-line=\"\">sudo systemctl enable --now atd<\/code><\/pre>\n<hr \/>\n<p><span style=\"color: #000080; font-size: 18pt;\"><strong>Similar Readings<\/strong><\/span><\/p>\n<ul>\n<li><strong><a href=\"https:\/\/linuxsimply.com\/neofetch-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cneofetch\u201d Command in Linux [12+ Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/tree-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201ctree\u201d Command in Linux [14 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/whatis-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cwhatis\u201d Command in Linux [12 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/whereis-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cwhereis\u201d Command in Linux [10 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/which-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201cwhich\u201d Command in Linux [3 Practical Examples]<\/a><\/strong><\/li>\n<li><strong><a class=\"in-cell-link\" href=\"https:\/\/linuxsimply.com\/tee-command-in-linux\/\" target=\"_blank\" rel=\"noopener\">The \u201ctee\u201d Command in Linux [4 Practical Examples]<\/a><\/strong><\/li>\n<\/ul>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;4032&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;6&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;1.5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;1.5\\\/5 - (6 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;The \u201cat\u201d Command in Linux [7 Practical Examples]&quot;,&quot;width&quot;:&quot;41&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; 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You can specify a &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"The \u201cat\u201d Command in Linux [7 Practical Examples]\" class=\"read-more button\" href=\"https:\/\/linuxsimply.com\/at-command-in-linux\/#more-4032\" aria-label=\"Read more about The \u201cat\u201d Command in Linux [7 Practical Examples]\">Read more<\/a><\/p>\n","protected":false},"author":314896,"featured_media":4036,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[60],"class_list":["post-4032","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux-commands","tag-miscellaneous-commands","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-33"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>The \u201cat\u201d Command in Linux [7 Practical Examples] - LinuxSimply<\/title>\n<meta name=\"description\" content=\"The at command in Linux is a tool for scheduling on-time jobs. 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I am Anonnya Ghosh, a Computer Science and Engineering graduate from Ahsanullah University of Science and Technology (AUST). Currently, I am working as a Linux Content Developer Executive at SOFTEKO. The strong bond between Linux and cybersecurity drives me to explore this world of open-source architecture. I aspire to learn new things further and contribute to the field of CS with my experience. Read Full Bio\",\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/profile.php?id=100005994046772&mibextid=ZbWKwL\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/anonnya-ghosh-6a934b211\"],\"url\":\"https:\\\/\\\/linuxsimply.com\\\/author\\\/anonya\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"The \u201cat\u201d Command in Linux [7 Practical Examples] - LinuxSimply","description":"The at command in Linux is a tool for scheduling on-time jobs. 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I am Anonnya Ghosh, a Computer Science and Engineering graduate from Ahsanullah University of Science and Technology (AUST). Currently, I am working as a Linux Content Developer Executive at SOFTEKO. The strong bond between Linux and cybersecurity drives me to explore this world of open-source architecture. I aspire to learn new things further and contribute to the field of CS with my experience. 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