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Usage: 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 combine only lines having STRING as prefix
-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=NUMBER maximum line width (default of 75 columns)
--help display this help and exit
--version output version information and exit
In -wNUMBER, the letter `w' may be omitted.
