| FOLD(1) | General Commands Manual | FOLD(1) | 
NAME
 fold — fold long lines for finite width output device
SYNOPSIS
| fold | [-bs] [-w width] [file ...] | 
 
DESCRIPTION
 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 characters.
The options are as follows:
- 
-b
- 
Count width in bytes rather than column positions.
- 
-s
- 
Fold line after the last blank character within the first width column positions (or bytes). If a blank character does not exist within the width, then a longer line will still be split at the width.
- 
-w width
- 
Specifies width to use as a line width, instead of the default 80 characters.
 
EXIT STATUS
 The fold utility exits 0 on success, and >0 if an error occurs.
STANDARDS
 The fold utility conforms to IEEE Std 1003.1-2008 (“POSIX.1”).
HISTORY
 The fold utility appeared in 1BSD.
BUGS
 If underlining is present it may be messed up by folding.
Width should be a multiple of 8 if tabs are present, or the tabs should be expanded using expand(1) before using fold.