Linux

List files and directories in the current or specified directory with various formatting options.

Change the current working directory to a specified path.

Display the full path of the current working directory.

Copy files and directories from one location to another.

Move or rename files and directories.

Delete files or directories permanently.

Create new empty files or update existing file timestamps.

Create new directories, including nested ones with the `-p` flag.

Display file contents

View file contents interactively

Output first part of files

Output last part of files

Search for patterns in files

Change file permissions

Change file owner and group

Print system information

Report file system disk space usage

Estimate file space usage

Display memory usage

Display Linux processes

Report current processes

Terminate processes by ID

Kill processes by name

Run process in background

Bring job to foreground

Test the reachability of a network host and measure round-trip time for packets sent to it.

Display or configure network interface parameters.

Show network connections, routing tables, interface statistics, and listening ports.

Securely connect to remote systems using encrypted communication.

Securely copy files or directories between local and remote hosts over SSH.

Tape archive utility

Compress files

Package and compress files

Create new user account

Change user password

Modify user account

Debian package management

RPM package management

Search for files in directory hierarchy

Schedule periodic background jobs

Create command shortcuts

Show command history

Synchronize files and directories

Transfer data to/from servers

Download files from web

Enhanced version of top

Vi improved text editor

Simple text editor

SSL/TLS toolkit

Control systemd services

Pattern scanning and processing language

Stream editor for filtering and transforming text

Sort lines of text files

Report or omit repeated lines

Remove sections from each line of files

Print newline, word, and byte counts

Translate or delete characters

Build and execute command lines from standard input

Find files by name using database

Locate a command

Locate binary, source, and manual page files

Make links between files

Mount a filesystem

Unmount a filesystem

Manipulate disk partition table

List information about block devices

List open files and processes

Run commands immune to hangups

Terminal multiplexer program

Modern terminal multiplexer

Display active jobs

Switch to another user account

Execute commands as another user

Print user and group IDs

Print group names a user is in

Show who is logged on

Show who is logged in and what they are doing

Show system uptime and load

Display or set system date

Display calendar