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command

file managementLinux/Unix
The command command is one of the most frequently used commands in Linux/Unix-like operating systems. command Sample fallback description for command
See ExamplesView Syntax

Quick Reference

Command Name:

command

Category:

file management

Platform:

Linux/Unix

Basic Usage:

command [options] [arguments]

Common Use Cases

  • 1

    Command execution

    Execute commands with specific behavior

  • 2

    Shell scripting

    Control command execution in shell scripts

  • 3

    Builtin verification

    Check if a command is a shell builtin

  • 4

    Function bypass

    Bypass shell functions to execute original commands

Syntax

command [OPTION]... [FILE]...

Options

Option Description
-l Use a long listing format
-a Show hidden entries starting with .
-h Human-readable sizes
-R List subdirectories recursively

Examples

How to Use These Examples

The examples below show common ways to use the command command. Try them in your terminal to see the results. You can copy any example by clicking on the code block.

Basic Examples:

ls
List files in the current directory.
ls -l
List files in long format with details.
ls -a
List all files including hidden ones.

Advanced Examples:

ls -lah Detailed list with human-readable sizes. ls -R List directories recursively.

Try It Yourself

Practice makes perfect! The best way to learn is by trying these examples on your own system with real files.

Understanding Syntax

Pay attention to the syntax coloring: commands, options, and file paths are highlighted differently.

Notes

These are sample notes for the command command.

Common Use Cases

Command execution

Execute commands with specific behavior

Shell scripting

Control command execution in shell scripts

Builtin verification

Check if a command is a shell builtin

Function bypass

Bypass shell functions to execute original commands

Script portability

Ensure scripts work consistently across different shells

Related Commands

These commands are frequently used alongside command or serve similar purposes:

type
which
whereis
hash
alias
exec
eval
source
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Use Cases

1

Command execution

Execute commands with specific behavior

2

Shell scripting

Control command execution in shell scripts

3

Builtin verification

Check if a command is a shell builtin

4

Function bypass

Bypass shell functions to execute original commands

5

Script portability

Ensure scripts work consistently across different shells

Learn By Doing

The best way to learn Linux commands is by practicing. Try out these examples in your terminal to build muscle memory and understand how the command command works in different scenarios.

See ExamplesTry Lab Exercises
$ command
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