fold - wrap each input line to fit in specified width
fold [OPTION]... [FILE]...
Wrap input lines in each FILE (standard input by default), writing to standard output.
Mandatory arguments to long options are mandatory for short options too.
count bytes rather than columns
break at spaces
use WIDTH columns instead of 80
--help display this help and exit
output version information and exit
Written by David MacKenzie.
Report fold bugs to firstname.lastname@example.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/> General help using GNU software: <http://www.gnu.org/gethelp/> Report fold translation bugs to <http://translationproject.org/team/>
Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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.
The full documentation for fold is maintained as a Texinfo manual. If the info and fold programs are properly installed at your site, the command
info coreutils 'fold invocation'
should give you access to the complete manual.