fmt [-WIDTH] [OPTION]... [FILE]...
Reformat each paragraph in the FILE(s), writing to standard output.
The option -WIDTH is an abbreviated form of --width=DIGITS.
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 pre-
fix 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
--version
output version information and exit
With no FILE, or when FILE is -, read standard input.