I am trying to create a script that searches for a string. The script has to make a substitution and backup file only if the string is found in the file.

So far I ahve tried:
#!/bin/csh
set firstargument=$1
set second argument=$2
set filename=$3
grep $firstargument $filename
if (true)then
echo "performing substitution"
sed "s/secondargument/g" $filename.bak > $filename
mv $filename $filename.bak
else
echo "string not found"
endif

Please Help!

Hey could you please help me!!!

Im trying to get an awk script to read a file (data.txt). this file conatains numbers only and print it to screen! into and array.
the file look lik this:

1
4
23
5
69
1
2

im trying to run an awk (ONLY) script that will read the numbers into an array and print it to screen! but i cant seem to find any help or books that show how to read numbers in awk instead of words!!!
is it me or am i just retarded!!!!

so the command line should be something like this:
# awk -f script.sh data.txt

this should invoke the script to read the data.txt file into an array and print it to screen
HELPPPPPPPPPPPPPPP!!!