Linux Commands Cheat Sheet

List all files including hidden ones, with details

Change directory

Show current working directory

Create a new directory

Remove a directory and its contents

Delete a file

Copy a file

Copy a directory recursively

Move or rename a file/folder

Create an empty file

Display contents of a file

View a file page by page

Search for a file by name

Search for text inside a file

Show IP address configuration (modern)

Show IP address configuration (legacy)

Test connectivity to a host

Trace the network route to a host

List active listening ports (modern netstat)

List active listening ports (legacy)

Fetch HTTP headers from a URL

Download a file from a URL

Look up DNS records for a domain

Detailed DNS lookup for a domain

Show the machine's IP address

Show system and kernel information

Live view of running processes and resource usage

Improved interactive process viewer (if installed)

Show disk space usage in human-readable form

Show memory usage in MB

Show how long the system has been running

Show current logged-in username

List all running processes in detail

Terminate a process by its Process ID

Terminate all processes matching a name

Change file permissions

Change file owner and group

Run a command with admin (root) privileges

Switch to another user

Show current user

Change the current user's password

Create a new user (as root)

Refresh package lists (Debian/Ubuntu)

Install a package (Debian/Ubuntu)

Upgrade all installed packages (Debian/Ubuntu)

Install a package (RHEL/CentOS)

Install a package (Fedora)

Check status of a service

Start a service

Stop a service

Restart a service

Enable a service to start on boot

View logs for a specific service