This is the command uniqplan9 that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
uniq - report repeated lines in a file
SYNOPSIS
uniq [ -udc [ +-num ] ] [ file ]
DESCRIPTION
Uniq copies the input file, or the standard input, to the standard output, comparing
adjacent lines. In the normal case, the second and succeeding copies of repeated lines
are removed. Repeated lines must be adjacent in order to be found.
-u Print unique lines.
-d Print (one copy of) duplicated lines.
-c Prefix a repetition count and a tab to each output line. Implies -u and -d.
-num The first num 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.
+num The first num characters are ignored. Fields are skipped before characters.
SOURCE
/src/cmd/uniq.c
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