15 Essential Linux Commands Every LINUX User Should Know
1. last Displays a list of the most recent user logins on the system. Example: 2. hostnamectl Shows or changes the system’s hostname and OS information. Example: 3. alias update='sudo apt update && sudo apt upgrade -y' Creates a shortcut (alias) for updating and upgrading all system packages. Example: 4. lsblk Lists all block storage devices (like hard drives and partitions). Example: 5. chmod +x Gives execute (run) permission to a script or file. Example: 6. top Displays real-time system resource usage — like CPU, memory, and running processes. Example: 7. free -h Shows the system’s memory usage (RAM and swap) in a human-readable format. Example: 8. ...
