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fmt - simple optimal text formatter


fmt [-DIGITS] [OPTION]... [FILE]...


Reformat each paragraph in the FILE(s), writing to standard output. If no FILE or if FILE is ‘-’, read standard input.

Mandatory arguments to long options are mandatory for short options too.

-c, --crown-margin
preserve indentation of first two lines

-p, --prefix=STRING
reformat only lines beginning with STRING, reattaching the prefix to reformatted lines

-s, --split-only
split long lines, but do not refill

-t, --tagged-paragraph
indentation of first line different from second

-u, --uniform-spacing
one space between words, two after sentences

-w, --width=WIDTH
maximum line width (default of 75 columns)

--help display this help and exit

output version information and exit

With no FILE, or when FILE is -, read standard input.


Written by Ross Paterson.

Reporting Bugs

Report bugs to <>.


Copyright (C) 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License <>. There is NO WARRANTY, to the extent permitted by law.

See Also

The full documentation for fmt is maintained as a Texinfo manual. If the info and fmt programs are properly installed at your site, the command

info fmt

should give you access to the complete manual.

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