UNIQ(1)              INTERACTIVE UNIX System              UNIQ(1)



          NAME
               uniq - report repeated lines in a file

          SYNOPSIS
               uniq [ -udc [ +n ] [ -n ] ] [ input [ output ] ]

          DESCRIPTION
               The uniq command reads the input file comparing adjacent
               lines.  In the normal case, the second and succeeding copies
               of repeated lines are removed; the remainder is written on
               the output file.  Input and output should always be dif-
               ferent.  Note that repeated lines must be adjacent in order
               to be found; see sort(1).  If the -u flag is used, just the
               lines that are not repeated in the original file are output.
               The -d option specifies that one copy of just the repeated
               lines is to be written.  The normal mode output is the union
               of the -u and -d mode outputs.

               The -c option supersedes -u and -d and generates an output
               report in default style but with each line preceded by a
               count of the number of times it occurred.

               The n arguments specify skipping an initial portion of each
               line in the comparison:

               -n      The first n fields together with any blanks before
                       each are ignored.  A field is defined as a string of
                       non-space, non-tab characters separated by tabs and
                       spaces from its neighbors.

               +n      The first n characters are ignored.  Fields are
                       skipped before characters.

          SEE ALSO
               comm(1), sort(1).




















          Rev. Editing Package                                       Page 1