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tr '[:upper:]' '[:lower:]' echo "Hello world" | tr '[:upper:]' '[:lower:]'

Tr

tr(1) is a character translation tool.


Installation

tr(1) will be pre-installed on any Linux or BSD operating system, as a POSIX utility.


Usage

To force text to all-lowercase, try:

echo "Hello world" | tr '[:upper:]' '[:lower:]'

Reverse the arguments to force to all-uppercase.


Tips

If you are trying to force a file to all-lowercase (or all-uppercase) and are already using vim, consider just saying in the editor and using ggVGu (or ggVGU).


See also

tr(1)


CategoryRicottone

Tr (last edited 2024-12-28 19:06:28 by DominicRicottone)