51 lines
1.6 KiB
Groff
51 lines
1.6 KiB
Groff
.TH SORT 1
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.SH NAME
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sort \- sort a file of ASCII lines
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.SH SYNOPSIS
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\fBsort\fR [\fB\-bcdf\&imnru\fR]\fR [\fB\-t\fIc\fR] [\fB\-o \fIname\fR] [\fB+\fIpos1\fR] [\fB\-\fIpos2\fR] \fIfile\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 "\-b" "Skip leading blanks when making comparisons"
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.FL "\-c" "Check to see if a file is sorted"
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.FL "\-d" "Dictionary order: ignore punctuation"
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.FL "\-f" "Fold upper case onto lower case"
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.FL "\-i" "Ignore nonASCII characters"
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.FL "\-m" "Merge presorted files"
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.FL "\-n" "Numeric sort order"
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.FL "\-o" "Next argument is output file"
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.FL "\-r" "Reverse the sort order"
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.FL "\-t" "Following character is field separator"
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.FL "\-u" "Unique mode (delete duplicate lines)"
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.SH EXAMPLES
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.EX "sort \-nr file" "Sort keys numerically, reversed"
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.EX "sort +2 \-4 file" "Sort using fields 2 and 3 as key"
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.EX "sort +2 \-t: \-o out" "Field separator is \fI:\fP"
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.EX "sort +.3 \-.6" "Characters 3 through 5 form the key"
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.SH DESCRIPTION
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.PP
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.I Sort
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sorts one or more files.
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If no files are specified, \fIstdin\fR is sorted.
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Output is written on standard output, unless \fB\-o\fP is specified.
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The options \fB+\fIpos1 \fB\-\fIpos2\fR use only fields \fIpos1\fR
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up to but not including \fIpos2\fR as the sort key, where a field is a
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string of characters delimited by spaces and tabs, unless a different field
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delimiter is specified with \fB\-t\fR.
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Both \fIpos1\fR and \fIpos2\fR have the form \fIm.n\fR where \fIm\fR tells
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the number of fields and \fIn\fR tells the number of characters.
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Either \fIm\fR or \fIn\fR may be omitted.
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.SH "SEE ALSO"
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.BR comm (1),
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.BR grep (1),
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.BR uniq (1).
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