Basics

Linux history command

Show commands recorded by your shell in the current history list.

Availability: Common Linux commands; shell built-ins and external implementations may differ by distribution.中文

Syntax

history [N] | history [-c] | history [-d OFFSET]

Examples

Show the most recent 20 commands.

history 20

Show the last ten displayed history lines.

history | tail -n 10

Parameters, options and clauses

Option / clause	Description
`N`	Show the most recent N history entries.
`-c`	Clear the in-memory history list.
`-d OFFSET`	Delete the history entry at OFFSET.
`-a`	Append new entries from this session to the history file.
`-r`	Read the history file and append its contents to the list.
`-w`	Write the current list to the history file.

Safety note

Review a command and its target before running it. Commands that alter files, services, accounts, disks, permissions or databases may be difficult to reverse. Test in a safe environment and keep backups.

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