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Text Processing

tr

Translate or delete characters from input.

Ubuntu CentOS Debian Arch SUSE Slackware Alpine Fedora

Last updated: 2026-07-05 Report error

Syntax

$tr [OPTIONS] SET1 [SET2]

Examples

Examples

$tr a-z A-Z

Examples

$tr -d '0-9'

Typical use cases

Upper/lower case

tr a-z A-Z

Delete digits

tr -d '0-9'

Squeeze repeats

tr -s ' '

Note Useful for case conversion and deletion.

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