UNIX for Dummies Questions & Answers

Hello,

I am a newbie here and I am just learning using Unix.
I have a dozen scripts that start like that:

#!/bin/ksh
if test $# -eq 0
then
list=short
else
list=$1
fi
DIR=.
DIRTOOLS=../tools

What I want to do is change modify 2 lines in each of these scripts without having to edit the files one by one.

I need to change:

DIR=.
DIRTOOLS=../tools

into:

DIR=../marc2006_qa
DIRTOOLS=/d2/marcdev/tools

There are other occurences of the string "DIR=." and "DIRTOOLS=" elsewhere in each script but only the first ones need to be changed.

Can someone tell me what command I need to type to perform this action?

Thank you so much for your help!

perl -e 'while(<>){s/DIR=\.\/DIR=\.\.\/marc2006_qa/;print $_;}' /yourfile > NEWFILE

You can call this in a shell script or run it right on the commandline. I didn't test it but this should work.

The command reads like this:

Run PERL from the command line: "perl -e"
Read each line one at a time: "while (<>)"
Substitute where you find DIR=. and replace it with DIR=../marc2006_qa
, (using g for all or NO g for the first occurance) to replace. print each line: "{s/:/ /; print $_;}'
The file your using as input: "/yourfile"
The change is not made to the input file, it must be printed out to a new file: " > NEWFILE "