unexpand man page

unexpand — convert spaces to tabs


unexpand {{file}}


unexpand -a {{file}}

unexpand --first-only {{file}}

unexpand -t {{number}} {{file}}


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


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


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 (enables -a)


display this help and exit


output version information and exit


Written by David MacKenzie.

Reporting Bugs

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

See Also


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

Referenced By

expand(1), perlmodlib(1).

March 2017 GNU coreutils 8.27 User Commands