{"id":2524,"date":"2024-12-14T07:20:12","date_gmt":"2024-12-14T07:20:12","guid":{"rendered":"https:\/\/yolohive.com\/?p=2524"},"modified":"2024-12-14T07:21:20","modified_gmt":"2024-12-14T07:21:20","slug":"linux-login-as-superuser-root-command","status":"publish","type":"post","link":"https:\/\/yolohive.com\/linux-login-as-superuser-root-command\/","title":{"rendered":"Linux Login as Superuser ( root ) command"},"content":{"rendered":"\n

How to Log in as Superuser or Root User in Linux<\/strong><\/p>\n\n\n\n

The superuser, also known as the root user or admin account, is a special user account reserved for system administration tasks on Linux. For security reasons, regular users and developers are typically restricted from directly accessing the root account by default. Here\u2019s how you can become a superuser in Linux:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Tutorials Details<\/strong><\/td>\n<\/tr>\n
Difficulty level<\/span><\/td>\nEasy<\/td>\n<\/tr>\n
Root privileges<\/span><\/td>\nYes<\/td>\n<\/tr>\n
Requirements<\/span><\/td>\nLinux Terminal<\/td>\n<\/tr>\n
Category<\/span><\/td>\nUser Information<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n

What is a Linux superuser account?<\/h2>\n\n\n\n

In Linux and other Unix-like operating systems, the “root” user is the account with full privileges and access to all files and programs across all modes, whether in single-user or multi-user environments. The root user can perform tasks that ordinary users cannot, such as changing file ownership and accessing ports below number 1024. The term “root” likely originates from the fact that this user is the only one with the authority to modify the root directory of a Unix system. The role of a system administrator (sysadmin) is diverse and can vary significantly depending on the organization. Sysadmins are responsible for installing, supporting, and maintaining servers and computer systems, as well as planning for and addressing service outages and other issues.<\/p>\n\n\n\n

Command to Login as Superuser in Linux<\/h2>\n\n\n\n

To log in as the superuser or root user on Linux, you can use one of the following commands:<\/p>\n\n\n\n

    \n
  1. su command<\/strong> \u2013 Run a command with a substitute user and group ID.<\/li>\n\n\n\n
  2. sudo command<\/strong> \u2013 Execute a command as another user.<\/li>\n\n\n\n
  3. doas command<\/strong> \u2013 An alternative to the sudo command, originating from the OpenBSD project. It is compatible with several Linux distributions, such as Alpine Linux.<\/li>\n\n\n\n
  4. \/etc\/passwd<\/strong> \u2013 The Linux user account file.<\/li>\n\n\n\n
  5. \/etc\/group<\/strong> \u2013 The file that defines group memberships, granting users superuser access.<\/li>\n\n\n\n
  6. \/etc\/shadow<\/strong> \u2013 The file containing Linux password information for each user, with passwords stored in a hashed format.<\/li>\n<\/ol>\n\n\n\n

    How to Become a Superuser in Linux<\/h2>\n\n\n\n

    Here are some examples of using the su<\/code> and sudo<\/code> commands to gain superuser privileges in Linux.<\/p>\n\n\n\n

    Become a Superuser in Linux Using the sudo Command<\/h2>\n\n\n\n

    To use the sudo<\/code> command, you must be part of a specific secondary group on Linux:<\/p>\n\n\n\n

      \n
    • sudo group<\/strong> on Debian or Ubuntu<\/li>\n\n\n\n
    • wheel group<\/strong> on CentOS, RHEL, Fedora, or Oracle Linux<\/li>\n<\/ul>\n\n\n\n

      You can check your secondary group membership by running either the groups<\/code> command or the id<\/code> command.<\/p>\n\n\n\n

      groups\nid<\/code><\/pre><\/div>\n\n\n\n
      uid=1000(admin) gid=1000(admin) groups=1000(admin),4(adm),20(dialout),24(cdrom),25(floppy),27(sudo),29(audio),30(dip),44(video),46(plugdev)<\/code><\/pre><\/div>\n\n\n\n
      You can also use the grep<\/code> or egrep<\/code> command to check if you are part of the sudo<\/code> or wheel<\/code> group. For example:<\/p>\n\n\n\n
      grep 'sudo' \/etc\/group\negrep 'sudo|wheel' \/etc\/group\negrep 'sudo|wheel' \/etc\/group | grep $USER<\/code><\/pre><\/div>\n\n\n\n
      sudo:x:27:admin<\/code><\/pre><\/div>\n\n\n\n
      Next, run the following command to switch to the root\/superuser:<\/p>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      Superuser Login \u2013 How to Become a Superuser in Linux Using su<\/strong><\/h2>\n\n\n\n
      In Linux and similar Unix-based systems, the su<\/code> command allows you to switch to another user during a login session or log in as the superuser. If used without specifying a username, su<\/code> defaults to switching to the superuser account.<\/p>\n\n\n\n
      It is highly recommended to use the -<\/code> option with the su<\/code> command. This option provides an environment similar to what the root user would have if they logged in directly. Use the su<\/code> command as follows:<\/p>\n\n\n\n
      su -<\/code><\/pre><\/div>\n\n\n\n
      Exiting a su or sudo Session<\/strong><\/h2>\n\n\n\n
      To exit a su<\/code> or sudo<\/code> session, simply type one of the following commands:<\/p>\n\n\n\n
        \n
      • exit<\/code><\/strong><\/li>\n\n\n\n
      • logout<\/code><\/strong><\/li>\n<\/ul>\n\n\n\n
        Another way to exit a su<\/code> or sudo<\/code> session is by pressing the CTRL<\/strong> and D<\/strong> keys simultaneously.<\/p>\n\n\n\n
        \"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"
        How to Log in as Superuser or Root User in Linux The superuser, also known as the root user or admin account, is a special user account reserved for system administration tasks on Linux. For security reasons, regular users and developers are typically restricted from directly accessing the root account by default. Here\u2019s how you<\/p>\n","protected":false},"author":1,"featured_media":2531,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":{"0":"post-2524","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-linux"},"acf":[],"yoast_head":"\nLinux Login as Superuser ( root ) command<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/yolohive.com\/linux-login-as-superuser-root-command\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Linux Login as Superuser ( root ) command\" \/>\n<meta property=\"og:description\" content=\"How to Log in as Superuser or Root User in Linux The superuser, also known as the root user or admin account, is a special user account reserved for system administration tasks on Linux. 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