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Full Discussion: sort and semi-duplicate row - keep latest only
Top Forums Shell Programming and Scripting sort and semi-duplicate row - keep latest only Post 302274653 by radoulov on Thursday 8th of January 2009 04:35:46 AM
Old 01-08-2009
Something like this:

Code:
sort -t\| -k5nr infile|sort -t\| -uk2.1,2.3

With AWK (nawk or /usr/xpg4/bin/awk on Solaris):

Code:
awk -F\| 'END {
  for (k in r)
    print r[k]
	}
$NF > m[$2] {
  m[$2] = $NF
  r[$2] = $0 }
  ' file

Notice that the output will not be ordered by the second field.
Last edited by radoulov; 01-08-2009 at 05:48 AM..
 

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LEARN ABOUT REDHAT

igawk

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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