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       uniq.1 (775B)
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            1 .Dd October 8, 2015
            2 .Dt UNIQ 1
            3 .Os sbase
            4 .Sh NAME
            5 .Nm uniq
            6 .Nd report or filter out repeated lines in a file
            7 .Sh SYNOPSIS
            8 .Nm
            9 .Op Fl c
           10 .Op Fl d | u
           11 .Op Fl f Ar num
           12 .Op Fl s Ar num
           13 .Op Ar input Op Ar output
           14 .Sh DESCRIPTION
           15 .Nm
           16 reads the
           17 .Ar input
           18 file and writes one copy of a line from each group of consecutive
           19 duplicate lines to the
           20 .Ar output
           21 file.
           22 If no
           23 .Ar input
           24 file is given
           25 .Nm
           26 reads from stdin.
           27 If no
           28 .Ar output
           29 file is given
           30 .Nm
           31 writes to stdout.
           32 .Sh OPTIONS
           33 .Bl -tag -width Ds
           34 .It Fl c
           35 Prefix each line with the number of consecutive occurrences in
           36 .Ar input .
           37 .It Fl d | Fl u
           38 Print duplicate | unique lines only.
           39 .It Fl f Ar num | Fl s Ar num
           40 Ignore the first
           41 .Ar num
           42 fields | characters in each input line when doing comparisons.
           43 .El
           44 .Sh STANDARDS
           45 POSIX.1-2013.