How to Check Running Processes in Linux
Screenshot of a Linux terminal showing commands and output for checking running processes: ps aux, top, htop, systemctl, and grep usage to filter processes, CPU/mem usage per proc.
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How to Find Your IP Address in Linux
Photoreal close-up of a modern workspace centered on a sleek laptop with glowing abstract network nodes on screen, holographic unreadable IP-like bars above keyboard, hands blurred
What Is the Purpose of the /var Directory?
Understanding your Linux system's file structure isn'
How to Change the Root Password in Linux
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How to List All Users in Linux
Terminal displaying methods to list all Linux users: viewing /etc/passwd, using getent, awk or cut, compgen -u, and sample output rows showing system and regular user accounts sys.
What Is the Difference Between su and sudo?
su opens a root shell by switching user account (requires root password). sudo runs a single command as root using your password, with per-command privileges and audit logging. See
How to Reboot Linux Using Command Line
Illustration showing a terminal window with command prompt, typing 'sudo reboot' and a progress spinner, symbolizing restarting a Linux system safely from the command line. now OK..
How to Check the Linux Kernel Version
Terminal showing command 'uname -r' and kernel version output; steps: open terminal, run uname -r or cat /proc/version to display Linux kernel release and build information. (info)
How to Configure Automatic Updates on Debian and Ubuntu
Learn how to configure automatic updates on Debian and Ubuntu with clear, step-by-step guidance for Linux and DevOps beginners. Secure systems using apt, unattended-upgrades, and simple scheduling tips.
What Is the /etc Directory in Linux?
Linux /etc directory: central system configuration files and directories, housing network, service, user and application settings; read by init, daemons, and administrative tools..