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Top Forums Shell Programming and Scripting AWK Help needed - Production Issue Post 302358814 by diksha2207 on Monday 5th of October 2009 12:20:11 AM
Old 10-05-2009
AWK Help needed - Production Issue

Hi

I have a cross reference file which contains 86000 records. The data is old number:new number. There are 100s of files where i need to search for old number and append corresponding new number (preceded by @) to the line containing old number. The files contain millions of records.
Currently I am using sed command as below:

Code:
  sed "/$v_s_replace_string/s/$/$v_s_new_string/" $v_s_file_name > tempfile1
  mv tempfile1 $v_s_file_name

v_s_replace_string = contains old number
and v_s_new_string = contains new number

I need to replace this sed command with and awk command as awk is faster than sed.

Please help.
Thanks

Last edited by Franklin52; 10-05-2009 at 03:35 AM.. Reason: Please use code tags!
 

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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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