fold(1) — USER COMMANDS
NAME
fold − fold long lines
SYNOPSIS
fold [ −w width | −width ] [ filename . . . ]
DESCRIPTION
Fold the contents of the specified filenames, or the standard input if no files are specified, breaking the lines to have maximum width width. The default for width is 80. width should be a multiple of 8 if tabs are present, or the tabs should be expanded.
SEE ALSO
NOTES
Folding may not work correctly if underlining is present.
The -w width option is provided as a transition tool only. It will be removed in future releases.
— Directory and File Management Utilities