unexpand man page

unexpand — convert spaces to tabs

TL;DR

unexpand file

unexpand

unexpand -a file

unexpand --first-only file

unexpand -t number file

Synopsis

unexpand [OPTION]... [FILE]...

Description

Convert blanks in each FILE to tabs, writing to standard output.

With no FILE, or when FILE is -, read standard input.

Mandatory arguments to long options are mandatory for short options too.

-a, --all

convert all blanks, instead of just initial blanks

--first-only

convert only leading sequences of blanks (overrides -a)

-t, --tabs=N

have tabs N characters apart instead of 8 (enables -a)

-t, --tabs=LIST

use comma separated list of tab positions The last specified position can be prefixed with '/' to specify a tab size to use after the last explicitly specified tab stop.  Also a prefix of '+' can be used to align remaining tab stops relative to the last specified tab stop instead of the first column

--help

display this help and exit

--version

output version information and exit

Author

Written by David MacKenzie.

Reporting Bugs

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report unexpand translation bugs to <https://translationproject.org/team/>

See Also

expand(1)

Full documentation at: <https://www.gnu.org/software/coreutils/unexpand>
or available locally via: info '(coreutils) unexpand invocation'

Referenced By

expand(1), perlmodlib(1).

December 2017 GNU coreutils 8.29 User Commands