.TH NUNIQ LOCAL
.SH NAME
nuniq \- remove lines/fields repeated later
.SH SYNOPSIS
.B nuniq
[ field# ]
.SH DESCRIPTION
.I Nuniq
removes replicated lines from its input, preserving the order of the
remaining lines in the output.  If a field number is given, lines
in which only that field is replicated are removed.
.PP
If line comparison is restricted to a field,
.I nuniq
will always remove the first N-1 lines of N matches, leaving the last
in the output stream.
.PP
Fields are numbered from 1 on the left.  Fields can also be specified
from the right as NR, NR-1, etc. for the last and next-to-last
respectively.
.SH AUTHOR
Corey Satten, corey @ cac.washington.edu
.SH "SEE ALSO"
awk(1)