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Top Forums Shell Programming and Scripting AWK question in the KORN shell Post 61745 by dbrundrett on Tuesday 8th of February 2005 09:13:53 AM
Old 02-08-2005
Quote:
Originally Posted by Ygor
Using awk...
Code:
awk '
    BEGIN {
        FS = OFS = ";"
        while (getline < "val_id.txt" > 0)
            arr[$1] = 1
    }
    $1 in arr {
        $2 = 50
        $NF =  $NF "<---debug: line changed"
    }
    {print}
' gmrd.txt

Tested...
Code:
235649;50;2563;598<---debug: line changed
291802;00;2563;598
314634;00;235649;598
235649;50;2563;598<---debug: line changed
393692;00;2563;598
411805;00;2563;598
411805;00;2563;598
235649;50;2563;598<---debug: line changed
414037;00;2563;598
etc.

Remove the debug line if this is what you wanted.
Ygor,
In your code you have the line 'while (getline < "val_id.txt" > 0)', what is the '> 0'. Is this redirection or relational operator?

Thanks in advance
 

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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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