tuniq.1 - plan9port - [fork] Plan 9 from user space
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       tuniq.1 (995B)
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            1 .TH UNIQ 1
            2 .SH NAME
            3 uniq \- report repeated lines in a file
            4 .SH SYNOPSIS
            5 .B uniq
            6 [
            7 .B -udc
            8 [
            9 .BI +- num
           10 ]
           11 ]
           12 [
           13 .I file
           14 ]
           15 .SH DESCRIPTION
           16 .I Uniq
           17 copies the input
           18 .IR file ,
           19 or the standard input, to the
           20 standard output, comparing adjacent lines.
           21 In the normal case, the second and succeeding copies
           22 of repeated lines are
           23 removed.
           24 Repeated lines must be adjacent
           25 in order to be found.
           26 .TP
           27 .B -u
           28 Print unique lines.
           29 .TP
           30 .B -d
           31 Print (one copy of) duplicated lines.
           32 .TP
           33 .B -c
           34 Prefix a repetition count and a tab to each output line.
           35 Implies
           36 .B -u
           37 and
           38 .BR -d .
           39 .TP
           40 .BI - num
           41 The first
           42 .IR num
           43 fields
           44 together with any blanks before each are ignored.
           45 A field is defined as a string of non-space, non-tab characters
           46 separated by tabs and spaces from its neighbors.
           47 .TP
           48 .BI + num
           49 The first
           50 .IR num
           51 characters are ignored.
           52 Fields are skipped before characters.
           53 .SH SOURCE
           54 .B \*9/src/cmd/uniq.c
           55 .SH "SEE ALSO"
           56 .IR sort (1) 
           57 .SH BUGS
           58 Field selection and comparison should be compatible with 
           59 .MR sort (1) .