Getting Started with Linux Fundamentals

Instructions

1. View information about your login session:

   [student@workstation ~]$ who
   student  pts/0        2023-09-27 22:01 (172.25.250.254)

2. View the current date, time, and time zone:

   [student@workstation ~]$ timedatectl
                  Local time: Wed 2023-09-27 22:01:46 EDT
              Universal time: Thu 2023-09-28 02:01:46 UTC
                    RTC time: Thu 2023-09-28 02:01:46
                   Time zone: America/New_York (EDT, -0400)
   System clock synchronized: yes
                 NTP service: active
             RTC in local TZ: no

3. View the machine name:

   [student@workstation ~]$ hostname
   workstation.lab.example.com

4. Review the information about the operating system, kernel, and hardware. Use the tab completion feature to run the hostnamectl command.

   Type hostn and then press Tab. The shell completes the hostname command, but this is not the intended command. Review the suggestions by pressing Tab twice, type c, and press Tab again. Then run the command.

   [student@workstation ~]$ hostnTab
   [student@workstation ~]$ hostnameTab+Tab
   hostname     hostnamectl
   [student@workstation ~]$ hostnamecTab
   [student@workstation ~]$ hostnamectl
    Static hostname: workstation.lab.example.com
          Icon name: computer-vm
            Chassis: vm
         Machine ID: 633680e38e32491899fbd3a7f6129842
            Boot ID: f97b2fbc043a4de7803a4e8b46d3ac33
     Virtualization: kvm
   Operating System: Red Hat Enterprise Linux 9.0 (Plow)
        CPE OS Name: cpe:/o:redhat:enterprise_linux:9::baseos
             Kernel: Linux 5.14.0-70.13.1.el9_0.x86_64
       Architecture: x86-64
    Hardware Vendor: Red Hat
     Hardware Model: OpenStack Compute

   Most of this information is the same as the information shown in the About section of the GNOME control panel.

5. On the third virtual console, log in as the operator2 user and use redhat as the password. Update the user's password to rh104.cli.

   1. Switch to the third virtual console by pressing Alt+Ctrl+F3. Log in as the operator2 user and use redhat as the password.

   2. Review the passwd command help. The --help (or -h) option prints information about the command itself, including the options you can use to alter the command's outcome.

      [operator2@workstation ~]$ passwd --help
      Usage: passwd [OPTION...] <accountName>
        -k, --keep-tokens       keep non-expired authentication tokens
        -d, --delete            delete the password for the named account (root only); also removes password lock if any
        -l, --lock              lock the password for the named account (root only)
        -u, --unlock            unlock the password for the named account (root only)
      ...output omitted...

   3. Update the operator2 user password to rh104.cli.

      [operator2@workstation ~]$ passwd
      Changing password for user operator2.
      Current password: redhat
      New password: rh104.cli
      Retype new password: rh104.cli
      passwd: all authentication tokens updated successfully.

   4. Test the new password by closing the session and logging back in.

      [operator2@workstation ~]$ exit
      
      workstation login: operator2
      Password: rh104.cli
      [operator2@workstation ~]$

6. Close the virtual console session and return to the desktop session.

   1. Close the virtual console session.

      [operator2@workstation ~]$ exit

   2. Return to the desktop session by pressing Alt+Ctrl+F2.

      $ Alt+Ctrl+F2