mirror of git://git.suckless.org/sbase
50 lines
827 B
Groff
50 lines
827 B
Groff
.Dd 2015-10-08
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.Dt UNIQ 1
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.Os sbase
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.Sh NAME
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.Nm uniq
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.Nd report or filter out repeated lines in a file
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.Sh SYNOPSIS
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.Nm
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.Op Fl c
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.Op Fl d | u
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.Op Fl f Ar num
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.Op Fl s Ar num
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.Op Ar input Op Ar output
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.Sh DESCRIPTION
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.Nm
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reads the
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.Ar input
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file and writes one copy of a line from each group of consecutive
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duplicate lines to the
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.Ar output
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file.
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If no
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.Ar input
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file is given
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.Nm
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reads from stdin.
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If no
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.Ar output
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file is given
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.Nm
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writes to stdout.
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.Sh OPTIONS
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.Bl -tag -width Ds
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.It Fl c
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Prefix each line with the number of consecutive occurrences in
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.Ar input .
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.It Fl d | Fl u
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Print duplicate | unique lines only.
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.It Fl f Ar num | Fl s Ar num
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Ignore the first
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.Ar num
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fields | characters in each input line when doing comparisons.
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.El
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.Sh STANDARDS
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The
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.Nm
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utility is compliant with the
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.St -p1003.1-2013
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specification.
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