uniq - Report or omit repeated lines.

       Report or omit repeated lines.

       Filter adjacent matching lines from INPUT (or standard input), writing to OUTPUT (or standard output).

       Note:  uniq  does  not  detect  repeated  lines unless they are adjacent.  You may want to sort the input
       first, or use sort -u without uniq.

       uniq - Report or omit repeated lines.

-D, --all-repeated=delimit-method
              print all duplicate lines. Delimiting is done with blank lines. [default: none]

              [possiblevalues: none, prepend, separate]

       --group=group-method
              show all items, separating groups with an empty line. [default: separate]

              [possiblevalues: separate, prepend, append, both]

       -w, --check-chars=N
              compare no more than N characters in lines

       -c, --count
              prefix lines by the number of occurrences

       -i, --ignore-case
              ignore differences in case when comparing

       -d, --repeated
              only print duplicate lines

       -s, --skip-chars=N
              avoid comparing the first N characters

       -f, --skip-fields=N
              avoid comparing the first N fields

       -u, --unique
              only print unique lines

       -z, --zero-terminated
              end lines with 0 byte, not newline

       -h, --help
              Print help

       -V, --version
              Print version

uniq  [-D|--all-repeated]  [--group]  [-w|--check-chars]  [-c|--count] [-i|--ignore-case] [-d|--repeated]
       [-s|--skip-chars]  [-f|--skip-fields]  [-u|--unique]  [-z|--zero-terminated]  [-h|--help]  [-V|--version]
       [files]

       v0.0.30

                                                   uniq 0.0.30                                           uniq(1)