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Top Forums Shell Programming and Scripting Reformating ascii file with awk Post 302370632 by radoulov on Thursday 12th of November 2009 03:31:55 AM
Old 11-12-2009
Use gawk, nawk or /usr/xpg4/bin/awk on Solaris:

Code:
awk 'BEGIN { ARGV[ARGC++] = ARGV[ARGC-1] }
FNR == NR { _[$5]++ ? max[$5] = NR : min[$5] = NR; next }
{ $5 = FNR == min[$5] ? 1 : (FNR == max[$5] ? 3 : 2) } 5
' infile

Consecutive default FS characters will be squeezed because of the ricompilation of the record,
let me know if this could be a problem.
With no default FS an OFS should be explicitly specified.

Last edited by radoulov; 11-12-2009 at 04:39 AM..
 

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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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