fold(1)fold(1)Namefold - fold long lines for finite width output device
Syntaxfold [-b] [-s] [-w width or -width] [file...]
The command is a filter which folds the contents of each specified
file, or the standard input if no file is specified, breaking the lines
to have maximum width width.
Options-b Causes each `<backspace>' in a line to be interpreted as decre‐
menting the line length by one.
-s Breaks the line on the last <blank> character found before the
specified length. If none are found the line breaks at the speci‐
-w width or -width
Specify the maximum line width, in bytes. The default value is 80.
The width should be a multiple of 8 if tabs are present, or the
tabs should be expanded using before coming to
The command may interfere with underlining.
The command returns zero (0) on successful completion.