FOLD(1) — Unix Programmer’s Manual
NAME
fold − fold long lines for finite width output device
SYNOPSIS
fold [ −width ] [ file ... ]
DESCRIPTION
Fold is a filter that folds the contents of the specified files, 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 using expand(1) before using fold. If no files are specified, fold filters the contents of the standard input.
SEE ALSO
BUGS
Fold will sometimes foul up underlining.
3rd Berkeley Distribution — April 29, 1985