EXPAND(1) User Commands EXPAND(1)

expand - convert tabs to spaces

expand [OPTION]... [FILE]...

Convert tabs in each FILE to spaces, 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.

do not convert tabs after non blanks
have tabs N characters apart, not 8
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
display this help and exit
output version information and exit

Written by David MacKenzie.

GNU coreutils online help: https://www.gnu.org/software/coreutils/
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Copyright © 2021 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.

unexpand(1)

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

September 2021 GNU coreutils 9.0