{"id":2456,"date":"2026-08-12T17:40:32","date_gmt":"2026-08-12T12:10:32","guid":{"rendered":"https:\/\/ehostpiya.in\/blog\/?p=2456"},"modified":"2026-08-12T17:40:34","modified_gmt":"2026-08-12T12:10:34","slug":"linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users","status":"publish","type":"post","link":"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/","title":{"rendered":"Linux Useful Commands: A Practical Guide for Beginners and Hosting Users"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 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 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#Linux_Useful_Commands_A_Practical_Guide_for_Beginners_and_Hosting_Users\" >Linux Useful Commands: A Practical Guide for Beginners and Hosting Users<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#1_pwd_%E2%80%94_Show_Current_Directory\" >1. pwd \u2014 Show Current Directory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#2_ls_%E2%80%94_List_Files_and_Directories\" >2. ls \u2014 List Files and Directories<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#3_cd_%E2%80%94_Change_Directory\" >3. cd \u2014 Change Directory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#4_mkdir_%E2%80%94_Create_a_Directory\" >4. mkdir \u2014 Create a Directory<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#5_touch_%E2%80%94_Create_a_File\" >5. touch \u2014 Create a File<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#6_cp_%E2%80%94_Copy_Files_and_Directories\" >6. cp \u2014 Copy Files and Directories<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#7_mv_%E2%80%94_Move_or_Rename_Files\" >7. mv \u2014 Move or Rename Files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#8_rm_%E2%80%94_Remove_Files\" >8. rm \u2014 Remove Files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#9_cat_%E2%80%94_Display_File_Contents\" >9. cat \u2014 Display File Contents<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#10_less_%E2%80%94_Read_Large_Files\" >10. less \u2014 Read Large Files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#11_head_%E2%80%94_View_the_Beginning_of_a_File\" >11. head \u2014 View the Beginning of a File<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#12_tail_%E2%80%94_View_the_End_of_a_File\" >12. tail \u2014 View the End of a File<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#13_grep_%E2%80%94_Search_for_Text\" >13. grep \u2014 Search for Text<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#14_find_%E2%80%94_Locate_Files\" >14. find \u2014 Locate Files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#15_du_%E2%80%94_Check_Disk_Usage\" >15. du \u2014 Check Disk Usage<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#16_df_%E2%80%94_Check_Available_Disk_Space\" >16. df \u2014 Check Available Disk Space<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#17_free_%E2%80%94_Check_Memory_Usage\" >17. free \u2014 Check Memory Usage<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#18_top_%E2%80%94_Monitor_Running_Processes\" >18. top \u2014 Monitor Running Processes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#19_ps_%E2%80%94_View_Running_Processes\" >19. ps \u2014 View Running Processes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#20_kill_%E2%80%94_Stop_a_Process\" >20. kill \u2014 Stop a Process<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#21_chmod_%E2%80%94_Change_File_Permissions\" >21. chmod \u2014 Change File Permissions<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#22_chown_%E2%80%94_Change_File_Ownership\" >22. chown \u2014 Change File Ownership<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#23_tar_%E2%80%94_Create_and_Extract_Archives\" >23. tar \u2014 Create and Extract Archives<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#24_wget_%E2%80%94_Download_Files\" >24. wget \u2014 Download Files<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#25_curl_%E2%80%94_Test_URLs_and_APIs\" >25. curl \u2014 Test URLs and APIs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#26_ping_%E2%80%94_Test_Network_Connectivity\" >26. ping \u2014 Test Network Connectivity<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#27_ss_%E2%80%94_Check_Network_Connections\" >27. ss \u2014 Check Network Connections<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#28_ip_%E2%80%94_View_Network_Information\" >28. ip \u2014 View Network Information<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#29_dig_%E2%80%94_Check_DNS_Records\" >29. dig \u2014 Check DNS Records<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#30_systemctl_%E2%80%94_Manage_Services\" >30. systemctl \u2014 Manage Services<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#31_journalctl_%E2%80%94_View_System_Logs\" >31. journalctl \u2014 View System Logs<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#32_ssh_%E2%80%94_Connect_to_a_Remote_Server\" >32. ssh \u2014 Connect to a Remote Server<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#33_whoami_%E2%80%94_Identify_the_Current_User\" >33. whoami \u2014 Identify the Current User<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#34_sudo_%E2%80%94_Run_Commands_With_Elevated_Privileges\" >34. sudo \u2014 Run Commands With Elevated Privileges<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#Useful_Linux_Commands_at_a_Glance\" >Useful Linux Commands at a Glance<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/#Final_Thoughts\" >Final Thoughts<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Linux_Useful_Commands_A_Practical_Guide_for_Beginners_and_Hosting_Users\"><\/span>Linux Useful Commands: A Practical Guide for Beginners and Hosting Users<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<p class=\"wp-block-paragraph\">Linux is widely used to power web servers, VPS machines, cloud platforms, and hosting environments. One of its biggest advantages is the command line, which allows administrators to manage files, monitor resources, install software, configure services, and troubleshoot problems quickly.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Whether you are managing a <strong>VPS, dedicated server, or Linux-based web hosting environment<\/strong>, learning a few essential commands can make server administration much easier.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_pwd_%E2%80%94_Show_Current_Directory\"><\/span>1. <code>pwd<\/code> \u2014 Show Current Directory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>pwd<\/code> command displays the full path of the directory you are currently working in.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>pwd\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Example output:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/home\/user\/public_html\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This is especially useful when working with multiple directories and you want to confirm your current location.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_ls_%E2%80%94_List_Files_and_Directories\"><\/span>2. <code>ls<\/code> \u2014 List Files and Directories<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Use <code>ls<\/code> to view files and folders in the current directory.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ls\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">For more detailed information:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ls -lah\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This displays file permissions, ownership, size, and hidden files in a human-readable format.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_cd_%E2%80%94_Change_Directory\"><\/span>3. <code>cd<\/code> \u2014 Change Directory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>cd<\/code> command allows you to move between directories.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cd \/var\/www\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Move one directory backward:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cd ..\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Return to your home directory:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cd ~\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_mkdir_%E2%80%94_Create_a_Directory\"><\/span>4. <code>mkdir<\/code> \u2014 Create a Directory<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Create a new folder using:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mkdir website\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">To create several levels of directories at once:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mkdir -p projects\/mywebsite\/files\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_touch_%E2%80%94_Create_a_File\"><\/span>5. <code>touch<\/code> \u2014 Create a File<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>touch<\/code> command can create an empty file.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>touch index.html\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">It can also update a file&#8217;s timestamp if the file already exists.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_cp_%E2%80%94_Copy_Files_and_Directories\"><\/span>6. <code>cp<\/code> \u2014 Copy Files and Directories<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Copy a file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cp index.html backup.html\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Copy a directory and its contents:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cp -r website website-backup\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Always double-check the destination when copying important server files.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"7_mv_%E2%80%94_Move_or_Rename_Files\"><\/span>7. <code>mv<\/code> \u2014 Move or Rename Files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Rename a file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mv old.html new.html\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Move a file to another directory:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mv index.html \/var\/www\/html\/\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>mv<\/code> command is useful for both moving and renaming files.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"8_rm_%E2%80%94_Remove_Files\"><\/span>8. <code>rm<\/code> \u2014 Remove Files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Delete a file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>rm oldfile.txt\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Remove an empty directory:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>rmdir oldfolder\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">To remove a directory and its contents:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>rm -r oldfolder\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Be careful with <code>rm<\/code>.<\/strong> Deleted files may not be recoverable through the command line.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"9_cat_%E2%80%94_Display_File_Contents\"><\/span>9. <code>cat<\/code> \u2014 Display File Contents<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>cat<\/code> command displays the contents of a text file.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat config.txt\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">It can be useful for quickly checking configuration files, logs, and scripts.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"10_less_%E2%80%94_Read_Large_Files\"><\/span>10. <code>less<\/code> \u2014 Read Large Files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">For large files, <code>less<\/code> is often more convenient than `cat.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>less \/var\/log\/syslog\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">You can scroll through the file without loading the entire contents into a single terminal display.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Press <strong>q<\/strong> to exit.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"11_head_%E2%80%94_View_the_Beginning_of_a_File\"><\/span>11. <code>head<\/code> \u2014 View the Beginning of a File<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Display the first lines of a file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>head access.log\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">To display the first 20 lines:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>head -n 20 access.log\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"12_tail_%E2%80%94_View_the_End_of_a_File\"><\/span>12. <code>tail<\/code> \u2014 View the End of a File<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>tail<\/code> command is particularly useful for checking recent log entries.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>tail error.log\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">To continuously monitor a log:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>tail -f error.log\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This is extremely useful when troubleshooting a website while reproducing an error.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"13_grep_%E2%80%94_Search_for_Text\"><\/span>13. <code>grep<\/code> \u2014 Search for Text<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Search for a specific word or phrase:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>grep \"error\" error.log\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">For a case-insensitive search:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>grep -i \"error\" error.log\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">You can also search recursively through directories:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>grep -R \"database\" \/var\/www\/\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"14_find_%E2%80%94_Locate_Files\"><\/span>14. <code>find<\/code> \u2014 Locate Files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Find a file by name:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>find \/var\/www -name \"index.php\"\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Find all PHP files:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>find \/var\/www -name \"*.php\"\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This command is useful when you know what you are looking for but not where it is stored.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"15_du_%E2%80%94_Check_Disk_Usage\"><\/span>15. <code>du<\/code> \u2014 Check Disk Usage<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">To see how much space a directory uses:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>du -sh \/var\/www\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">To identify large directories:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>du -h --max-depth=1\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This can help locate websites, backups, or log files consuming excessive disk space.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"16_df_%E2%80%94_Check_Available_Disk_Space\"><\/span>16. <code>df<\/code> \u2014 Check Available Disk Space<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>df<\/code> command shows filesystem storage usage.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>df -h\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>-h<\/code> option displays sizes in an easier-to-read format such as GB and MB.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If a server is running out of disk space, <code>df -h<\/code> is one of the first commands worth checking.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"17_free_%E2%80%94_Check_Memory_Usage\"><\/span>17. <code>free<\/code> \u2014 Check Memory Usage<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">View RAM usage with:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>free -h\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">It provides information about used, available, and cached memory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This can help identify whether a VPS is experiencing memory pressure.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"18_top_%E2%80%94_Monitor_Running_Processes\"><\/span>18. <code>top<\/code> \u2014 Monitor Running Processes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>top<\/code> command provides a live view of processes and system resource usage.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>top\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">It can help identify processes consuming significant CPU or memory.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On systems where it is installed, <code>htop<\/code> provides a more interactive alternative:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>htop\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"19_ps_%E2%80%94_View_Running_Processes\"><\/span>19. <code>ps<\/code> \u2014 View Running Processes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Display currently running processes:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ps aux\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Search for a particular process:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ps aux | grep nginx\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This is useful when checking whether a particular application or service is running.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"20_kill_%E2%80%94_Stop_a_Process\"><\/span>20. <code>kill<\/code> \u2014 Stop a Process<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If a process becomes unresponsive, you can terminate it using its process ID:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>kill 1234\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">If a process does not respond to a normal termination request, administrators may use:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>kill -9 1234\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Use forceful termination carefully because it does not give the application an opportunity to shut down gracefully.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"21_chmod_%E2%80%94_Change_File_Permissions\"><\/span>21. <code>chmod<\/code> \u2014 Change File Permissions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Linux uses permissions to control who can read, modify, or execute files.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chmod 644 index.php\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">For a directory:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chmod 755 public_html\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Incorrect permissions can cause website errors, so permissions should be changed carefully rather than simply making everything writable.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"22_chown_%E2%80%94_Change_File_Ownership\"><\/span>22. <code>chown<\/code> \u2014 Change File Ownership<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Change ownership of a file:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chown user:user index.php\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">For a directory and its contents:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>chown -R user:user public_html\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Incorrect ownership can prevent web applications from reading or writing required files.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"23_tar_%E2%80%94_Create_and_Extract_Archives\"><\/span>23. <code>tar<\/code> \u2014 Create and Extract Archives<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Create a compressed archive:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>tar -czf website-backup.tar.gz public_html\/\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Extract an archive:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>tar -xzf website-backup.tar.gz\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\"><code>tar<\/code> is commonly used for website backups and transferring groups of files.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"24_wget_%E2%80%94_Download_Files\"><\/span>24. <code>wget<\/code> \u2014 Download Files<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Download a file from a URL:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>wget https:\/\/example.com\/file.zip\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">It is useful for downloading software packages, backups, and other files directly from a server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Only download files from sources you trust.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"25_curl_%E2%80%94_Test_URLs_and_APIs\"><\/span>25. <code>curl<\/code> \u2014 Test URLs and APIs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><code>curl<\/code> is a versatile networking utility.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Check a website:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>curl -I https:\/\/example.com\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>-I<\/code> option retrieves HTTP headers, making it useful for checking response codes and server headers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, you might see:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>HTTP\/2 200\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">A redirect might return a <strong>301<\/strong> or <strong>302<\/strong>, while a missing page may return <strong>404<\/strong>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"26_ping_%E2%80%94_Test_Network_Connectivity\"><\/span>26. <code>ping<\/code> \u2014 Test Network Connectivity<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Test connectivity to a host:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ping example.com\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">It can help determine whether a host is reachable over the network.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Note that some servers block ICMP traffic, so a failed ping does not necessarily mean the website is offline.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"27_ss_%E2%80%94_Check_Network_Connections\"><\/span>27. <code>ss<\/code> \u2014 Check Network Connections<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">View listening ports:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ss -tuln\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This can help identify which network services are listening on the server.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, web servers commonly listen on ports such as <strong>80<\/strong> for HTTP and <strong>443<\/strong> for HTTPS.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"28_ip_%E2%80%94_View_Network_Information\"><\/span>28. <code>ip<\/code> \u2014 View Network Information<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Display network interfaces and IP addresses:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ip addr\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">View routing information:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ip route\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">The <code>ip<\/code> command is commonly used for modern Linux network configuration and troubleshooting.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"29_dig_%E2%80%94_Check_DNS_Records\"><\/span>29. <code>dig<\/code> \u2014 Check DNS Records<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Query DNS information:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig example.com\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Check a specific record type:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dig example.com MX\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This is particularly useful when troubleshooting domain and DNS problems.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"30_systemctl_%E2%80%94_Manage_Services\"><\/span>30. <code>systemctl<\/code> \u2014 Manage Services<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">On systems using <code>systemd<\/code>, <code>systemctl<\/code> is commonly used to manage services.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Check a service:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl status nginx\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Restart a service:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl restart nginx\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Start a service:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl start nginx\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Enable a service at boot:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>systemctl enable nginx\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Always verify the service name on your particular Linux distribution.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"31_journalctl_%E2%80%94_View_System_Logs\"><\/span>31. <code>journalctl<\/code> \u2014 View System Logs<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><code>journalctl<\/code> allows administrators to inspect logs managed by <code>systemd<\/code>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">View recent messages:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>journalctl -n 50\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">View logs for a particular service:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>journalctl -u nginx\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This can be extremely helpful when a service refuses to start or repeatedly crashes.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"32_ssh_%E2%80%94_Connect_to_a_Remote_Server\"><\/span>32. <code>ssh<\/code> \u2014 Connect to a Remote Server<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Secure Shell (SSH) allows you to connect to a remote Linux server.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh username@server-ip\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">After authentication, you can manage the remote server through the terminal.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For security, use strong authentication practices and avoid exposing unnecessary SSH access to the public internet.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"33_whoami_%E2%80%94_Identify_the_Current_User\"><\/span>33. <code>whoami<\/code> \u2014 Identify the Current User<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Find out which Linux user you are currently logged in as:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>whoami\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">This is useful when working with permissions and administrative commands.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"34_sudo_%E2%80%94_Run_Commands_With_Elevated_Privileges\"><\/span>34. <code>sudo<\/code> \u2014 Run Commands With Elevated Privileges<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Some administrative operations require elevated privileges.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>sudo systemctl restart nginx\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Linux may ask for your account password depending on the system&#8217;s configuration.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use <code>sudo<\/code> carefully because administrative commands can modify critical server components.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Useful_Linux_Commands_at_a_Glance\"><\/span>Useful Linux Commands at a Glance<span class=\"ez-toc-section-end\"><\/span><\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Command<\/th><th>Main Purpose<\/th><\/tr><\/thead><tbody><tr><td><code>pwd<\/code><\/td><td>Show current directory<\/td><\/tr><tr><td><code>ls<\/code><\/td><td>List files<\/td><\/tr><tr><td><code>cd<\/code><\/td><td>Change directory<\/td><\/tr><tr><td><code>mkdir<\/code><\/td><td>Create directory<\/td><\/tr><tr><td><code>touch<\/code><\/td><td>Create file<\/td><\/tr><tr><td><code>cp<\/code><\/td><td>Copy files<\/td><\/tr><tr><td><code>mv<\/code><\/td><td>Move or rename files<\/td><\/tr><tr><td><code>rm<\/code><\/td><td>Delete files<\/td><\/tr><tr><td><code>cat<\/code><\/td><td>Display file contents<\/td><\/tr><tr><td><code>grep<\/code><\/td><td>Search text<\/td><\/tr><tr><td><code>find<\/code><\/td><td>Find files<\/td><\/tr><tr><td><code>df<\/code><\/td><td>Check disk space<\/td><\/tr><tr><td><code>du<\/code><\/td><td>Check directory size<\/td><\/tr><tr><td><code>free<\/code><\/td><td>Check RAM<\/td><\/tr><tr><td><code>top<\/code><\/td><td>Monitor processes<\/td><\/tr><tr><td><code>chmod<\/code><\/td><td>Change permissions<\/td><\/tr><tr><td><code>chown<\/code><\/td><td>Change ownership<\/td><\/tr><tr><td><code>tar<\/code><\/td><td>Archive\/extract files<\/td><\/tr><tr><td><code>curl<\/code><\/td><td>Test URLs\/API requests<\/td><\/tr><tr><td><code>wget<\/code><\/td><td>Download files<\/td><\/tr><tr><td><code>ping<\/code><\/td><td>Test network connectivity<\/td><\/tr><tr><td><code>ss<\/code><\/td><td>View network sockets<\/td><\/tr><tr><td><code>dig<\/code><\/td><td>Check DNS<\/td><\/tr><tr><td><code>systemctl<\/code><\/td><td>Manage services<\/td><\/tr><tr><td><code>journalctl<\/code><\/td><td>View system logs<\/td><\/tr><tr><td><code>ssh<\/code><\/td><td>Connect to remote server<\/td><\/tr><tr><td><code>sudo<\/code><\/td><td>Run administrative commands<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Final_Thoughts\"><\/span>Final Thoughts<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Linux commands provide direct control over a server and are an essential skill for VPS administrators, developers, system administrators, and web hosting professionals. You do not need to memorize every command. Instead, learn the commands you frequently use for <strong>file management, permissions, networking, resource monitoring, services, and troubleshooting<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Before running a potentially destructive command on a production server, verify exactly what it will do and maintain reliable backups. A few seconds of checking can prevent hours of recovery work.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"Linux Useful Commands: A Practical Guide for Beginners and Hosting Users Linux is widely used to power web&hellip;","protected":false},"author":1,"featured_media":2457,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_display_header_overlay":false,"csco_singular_sidebar":"","csco_page_header_type":"","footnotes":""},"categories":[136],"tags":[],"class_list":["post-2456","post","type-post","status-publish","format-standard","has-post-thumbnail","category-miscellaneous","cs-entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Linux Useful Commands: A Practical Guide for Beginners and Hosting Users - Web Hosting Blogs by Ehostpiya | Tips and Tricks<\/title>\n<meta name=\"description\" content=\"Linux Useful Commands: A Practical Guide for Beginners and Hosting Users -\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ehostpiya.in\/blog\/linux-useful-commands-a-practical-guide-for-beginners-and-hosting-users\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux Useful Commands: A Practical Guide for Beginners and Hosting Users - 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