37 lines
1 KiB
Groff
37 lines
1 KiB
Groff
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.TH UNIQ 1
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.SH NAME
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uniq \- delete consecutive identical lines in a file
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.SH SYNOPSIS
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\fBuniq\fR [\fB\-cdu\fR]\fR [\fB\-\fIn\fR] [\fB+\fIn\fR] [\fIinput [\fIoutput\fR]\fR]\fR
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.br
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.de FL
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.TP
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\\fB\\$1\\fR
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\\$2
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..
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.de EX
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.TP 20
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\\fB\\$1\\fR
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# \\$2
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..
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.SH OPTIONS
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.FL "\-c" "Give count of identical lines in the input"
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.FL "\-d" "Only duplicate lines are written to output"
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.FL "\-u" "Only unique lines are written to output"
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.FL "\-\fIn\fR" "Skip the first \fIn\fR columns when matching"
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.FL "+\fIn\fR" "Skip the first \fIn\fR fields when matching"
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.SH EXAMPLES
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.EX "uniq +2 file" "Ignore first 2 fields when comparing"
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.EX "uniq \-d inf outf" "Write duplicate lines to \fIoutf\fP"
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.SH DESCRIPTION
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.PP
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.I Uniq
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examines a file for consecutive lines that are identical.
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All but duplicate entries are deleted, and the file is written to output.
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The +\fIn\fR option skips the first \fIn\fR fields, where a field is defined
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as a run of characters separated by white space.
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The \-\fIn\fP option skips the first \fIn\fR spaces.
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Fields are skipped first.
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.SH "SEE ALSO"
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.BR sort (1).
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