Shell Programming and Scripting

Hey everybody, I have a script for making a string substitution in a file. I am trying to modify it in order to make the same modifcation to multiples files. here is what I have so far.

Code:

#!/bin/csh
set p1="$1"
shift
set p2="$1"
shift
foreach x ($*)
if ( { grep -w -c "$p1" $x } ) then
mv $x $x.bak
sed "s/$p1/$p2/g" $x.bak > $x
else
endif
end

any help would be great. Thanks in advance!

---------- Post updated 05-04-10 at 12:17 PM ---------- Previous update was 05-03-10 at 04:40 PM ----------

help bump

Provide the input and the output you are expecting ..would help us to understand this.

surely, say for example I wanted to replace "hi guys" with "hello everyone" in a bunch of files to sound more proper, I should be able to use the command

~/Unix/script/subst "hi guys" "hello everyone" myFile1.txt myFile2.txt myFile3.txt

and I want it to make that replacement in everyfile. my code works for just one file, but I am having some trouble manipulating the loop to make it work for multiple files.

Something like this:

Code:

 
perl -i -pe 's/hi guys/hello everyone/i ;' myFile*

well I'm trying to not use any perl because I am not too familiar with it. Thanks for the help though. the script should work for any target and replacement though with this line

Code:

 
sed "s/$p1/$p2/g" $x.bak > $x

I am trying to get it to work for multiple "x" files but am still stuck.

Ok , a bit modification to your script will work i hope.

Code:

 
for file_name in `ls`
do
sed "s/$p1/$p2/g" $file_name > $file_name".new"
mv $file_name".new" $file_name
done

Still not getting it to work 8 ( , this is driving me crazy lol