fold - wrap each input line to fit in specified width
fold [OPTION]... [FILE]...
Wrap input lines in each FILE, 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.
count bytes rather than columns
break at spaces
use WIDTH columns instead of 80
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 © 2020 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.
Full documentation https://www.gnu.org/software/coreutils/fold
or available locally via: info '(coreutils) fold invocation'