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Top Forums Shell Programming and Scripting Need to remove the duplicate lines from a log!! Post 302583418 by ryran on Tuesday 20th of December 2011 11:11:44 AM
Old 12-20-2011
If you're okay with the new file not including timestamps, it would be really simple:
Code:
sed 's/#####:TM.*//' file | sort -u > newfile

If you need timestamps, I can offer this BASH snippet, but it can only get rid of duplicate ADJACENT lines:
[EDIT: Removed. Compared to the elegance of CarloM's awk, this was ridiculous]

I'm sure there's a better way. I think some awk-master is gonna need to post for a perfect solution.

Last edited by ryran; 12-20-2011 at 12:27 PM..
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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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