fmt
simple optimal text formatter
TLDR
Reformat a file
Reformat a file producing output lines of (at most) n characters
Reformat a file without joining lines shorter than the given width together
Reformat a file with uniform spacing (1 space between words and 2 spaces between paragraphs)
SYNOPSIS
fmt [ -WIDTH ][ OPTION ]...[ FILE ]...
DESCRIPTION
Reformat each paragraph in the FILE(s), writing to standard output. The option -WIDTH is an abbreviated form of --width = DIGITS .
With no FILE, or when FILE is -, read standard input.
Mandatory arguments to long options are mandatory for short options too.
-c , --crown -margin preserve indentation of first two lines
-p , --prefix = STRING reformat only lines beginning with STRING, reattaching the prefix to reformatted lines
-s , --split -only split long lines, but do not refill
-t , --tagged -paragraph indentation of first line different from second
-u , --uniform -spacing one space between words, two after sentences
-w , --width = WIDTH maximum line width (default of 75 columns)
-g , --goal = WIDTH goal width (default of 93% of width)
--help display this help and exit
--version output version information and exit
REPORTING BUGS
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
COPYRIGHT
Copyright 2019 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.
SEE ALSO
Full documentation <https://www.gnu.org/software/coreutils/fmt> or available locally via: info fmt invocation
AUTHOR
Written by Ross Paterson.