Usage: /usr/bin/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.
  -b, --bytes
         count bytes rather than columns
  -c, --characters
         count characters rather than columns
  -s, --spaces
         break after blanks, or in words greater than WIDTH
  -w, --width=WIDTH
         use WIDTH columns instead of 80
      --help
         display this help and exit
      --version
         output version information and exit

Report bugs to: <bug-coreutils@gnu.org>.
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Full documentation <https://www.gnu.org/software/coreutils/fold>
or available locally via: info '(coreutils) fold invocation'