Fold long lines for finite width output device
fold [-bs]
[-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 a maximum of 80 display columns.
The options are as follows:
-b
Count width in bytes rather than column positions.
-s
If an output line would be broken after a non-blank character but contains at least one blank character, break the line earlier, after the last blank character. This is useful to avoid line breaks in the middle of words, if possible.
-w width
Specifies a line width to use instead of the default of 80.
Unless -b is specified, a backspace character decrements the column position by one, a carriage return resets the column position to zero, and a tab advances the column position to the next multiple of eight.
LC_CTYPE
The character encoding locale(1). It decides which byte sequences form characters and what their display width is. If unset or set to "C", "POSIX", or an unsupported value, each byte except backspace, tab, newline, and carriage return is treated as a character of display width 1.
The fold utility exits 0 on success, and >0 if an error occurs.
61 releases since OpenBSD 2.1; the text changed 14 times.