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# !
> Reuse and expand the shell history in `sh`, Bash, Zsh, `rbash` and `ksh`.
> More information: <https://gnu.org/software/bash/manual/bash.html#Event-Designators>.
- Substitute with the previous command and run it with `sudo`:
`sudo !!`
- Substitute with a command based on its line number found with `history`:
`!{{number}}`
- Substitute with a command that was used a specified number of lines back:
`!-{{number}}`
- Substitute with the most recent command that starts with a string:
`!{{string}}`
- Substitute with the arguments of the latest command:
`{{command}} !*`
- Substitute with the last argument of the latest command:
`{{command}} !$`
- Substitute with the last command but without the last argument:
`!:-`
- Print last command that starts with a string without executing it:
`!{{string}}:p`