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Annotation of 43BSDReno/usr.bin/uniq/uniq.1, revision 1.1.1.1

1.1       root        1: .\"    @(#)uniq.1      6.1 (Berkeley) 4/29/85
                      2: .\"
                      3: .TH UNIQ 1 "April 29, 1985"
                      4: .AT 3
                      5: .SH NAME
                      6: uniq \- report repeated lines in a file
                      7: .SH SYNOPSIS
                      8: .B uniq
                      9: [
                     10: .B \-udc
                     11: [
                     12: .BR + n
                     13: ] [
                     14: .BR \- n
                     15: ]
                     16: ] [ input [ output ] ]
                     17: .SH DESCRIPTION
                     18: .I Uniq
                     19: reads the input file comparing adjacent lines.
                     20: In the normal case, the second and succeeding copies of repeated lines are
                     21: removed; the remainder is written on the output file.
                     22: Note that repeated lines must be adjacent in order to be found; see
                     23: .IR  sort (1).
                     24: If the
                     25: .B \-u
                     26: flag is used, just the lines that are not repeated
                     27: in the original file are output.  The
                     28: .B \-d
                     29: option specifies that one copy of just the repeated lines is to be written.
                     30: The normal mode output is the union of the
                     31: .B \-u
                     32: and
                     33: .B \-d
                     34: mode outputs.
                     35: .PP
                     36: The
                     37: .B \-c
                     38: option supersedes
                     39: .B \-u
                     40: and
                     41: .B \-d
                     42: and generates an output report in default style
                     43: but with each line preceded by a count of the number of times it occurred.
                     44: .PP
                     45: The
                     46: .I n
                     47: arguments specify skipping an initial portion of each line in the comparison:
                     48: .TP 8
                     49: .BI \- n
                     50: The first
                     51: .IR n 
                     52: fields together with any blanks before each are ignored.
                     53: A field is defined as a string of non-space, non-tab characters
                     54: separated by tabs and spaces from its neighbors.
                     55: .TP 8
                     56: .BI + n
                     57: The first
                     58: .IR n 
                     59: characters are ignored.  Fields are skipped before characters.
                     60: .PP
                     61: .SH "SEE ALSO"
                     62: sort(1), comm(1)

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