How do I edit a bunch of files in Unix ?

[Tison]

I want to edit 20 AIX Korn script files and make the following global substitution to each one ;
1,$s/oldword/newword/g
How do I do this ?
Does anyone have a script that I can use ?

Thanks
Steve [sig][/sig]

 

[ElgisRamon]

Try this:
[tt]
for AFile in /some/path/*
do
sed "s/firstword/secondword/g" $AFile > /tmp/TempoFile
mv -f /tmp/TempoFile $AFile
done
[/tt]

Must be some better way to do this, but I'm no Unix Guru... ;-) [sig][/sig]