FOLD(1) BSD Reference Manual FOLD(1)
fold - fold long lines for finite width output device
fold [-w width] file ...
Fold is a filter which folds the contents of the specified files, or the
standard input if no files are specified, breaking the lines to have max-
imum of 80 characters.
The options are as follows:
-w Specifies a line width to use instead of the default 80 charac-
ters. Width should be a multiple of 8 if tabs are present, or
the tabs should be expanded using expand(1) before using fold.
If underlining is present it may be messed up by folding.
4.4BSD June 6, 1993 1