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Full Discussion: Avoid Duplicates in a file
Top Forums UNIX for Dummies Questions & Answers Avoid Duplicates in a file Post 302178231 by pssandeep on Tuesday 25th of March 2008 04:33:21 AM
Old 03-25-2008
Quote:
Originally Posted by sysgate
use :
Code:
sort file1 | uniq -u > new-file-only-unique-lines

"uniq -q" prints only the unique lines in a file.
Thanks for ur reply
But here all the lines are unique since reader_1 will be changed Reader_2.only that variation will be there,

so if i use uniq command it not getting the desired output.
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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