How about using a single line sed like this:-

Code:

sed "s/^C\(      CALL.*'\(Gmax\|Gmin\|HS10\|HS2\|HS9\|Hmax\)'.*\)/\1/" source_file_name > target_file_name

It's a little messy to read, so:-


Does this meet your need? Does the explanation make sense?


You could be brave and use the -i flag and no target file to just update the source file, but I'd recommend testing it first to make sure you are happy.


If the list of alternates is getting overly complex, you could pout them in a reference file, one line at a time and build the list for your command, something like:-

Code:

#!/bin/bash

item_list=""
while read item
do
   if [ "${item_list}" = "" ]
   then
      item_list="${item}"
   else
      item_list="${item_list}\|${item}"
   fi
done < reference_file_name

echo "${item_list}"              # Just so you can see

sed "s/^C\(      CALL.*'\(${item_list}\)'.*\)/\1/" source_file_name > target_file_name

Perhaps run this with bash -xv your_script_name to check what it's doing.


I hope that this helps,
Robin