.TH UNIQ 1 "10 February 1983"
uniq \- report repeated lines in a file
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.
Note that repeated lines must be adjacent in order to be found; see
flag is used, just the lines that are not repeated
in the original file are output. The
option specifies that one copy of just the repeated lines is to be written.
The normal mode output is the union of the
and generates an output report in default style
but with each line preceded by a count of the number of times it occurred.
arguments specify skipping an initial portion of each line in the comparison:
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.
characters are ignored. Fields are skipped before characters.