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| 1 | .TH UNIQ 1
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| 2 | .SH NAME
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| 3 | uniq \- delete consecutive identical lines in a file
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| 4 | .SH SYNOPSIS
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| 5 | \fBuniq\fR [\fB\-cdu\fR]\fR [\fB\-\fIn\fR] [\fB+\fIn\fR] [\fIinput [\fIoutput\fR]\fR]\fR
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| 6 | .br
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| 7 | .de FL
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| 8 | .TP
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| 9 | \\fB\\$1\\fR
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| 10 | \\$2
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| 11 | ..
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| 12 | .de EX
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| 13 | .TP 20
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| 14 | \\fB\\$1\\fR
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| 15 | # \\$2
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| 16 | ..
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| 17 | .SH OPTIONS
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| 18 | .FL "\-c" "Give count of identical lines in the input"
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| 19 | .FL "\-d" "Only duplicate lines are written to output"
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| 20 | .FL "\-u" "Only unique lines are written to output"
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| 21 | .FL "\-\fIn\fR" "Skip the first \fIn\fR columns when matching"
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| 22 | .FL "+\fIn\fR" "Skip the first \fIn\fR fields when matching"
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| 23 | .SH EXAMPLES
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| 24 | .EX "uniq +2 file" "Ignore first 2 fields when comparing"
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| 25 | .EX "uniq \-d inf outf" "Write duplicate lines to \fIoutf\fP"
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| 26 | .SH DESCRIPTION
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| 27 | .PP
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| 28 | .I Uniq
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| 29 | examines a file for consecutive lines that are identical.
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| 30 | All but duplicate entries are deleted, and the file is written to output.
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| 31 | The +\fIn\fR option skips the first \fIn\fR fields, where a field is defined
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| 32 | as a run of characters separated by white space.
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| 33 | The \-\fIn\fP option skips the first \fIn\fR spaces.
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| 34 | Fields are skipped first.
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| 35 | .SH "SEE ALSO"
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| 36 | .BR sort (1).
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