Man page - unexpand(1)

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Manual

UNEXPAND

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
SEE ALSO

NAME

unexpand - convert spaces to tabs

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 any translation bugs to <https://translationproject.org/team/>

SEE ALSO

expand (1)

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

Packaged by Debian (9.7-3)
Copyright © 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.