How to process each output from grep

[Nyah Check]

I'm working on this shell script to process the each output from grep by searching each regexp from file1 and using each matching regexp and searching file2 for a matching line and using awk to delete

#Here is my code
#!bin/sh

regexp="[a-z]*.[a-z][,$]+"

file1=$1
file2=$2

#this searches all matching regexp in file1
grep -i -o -E "$regexp" $file1 #how to assign each output to$str was thinking of arrays,here but it'll be long 

#Problems is using each output from grep lets say $str

#next part searching file 2 for $str and deleting each matching line
line=$(grep -o -i "$str" $file2)

#delete line
 sed '/$line/d' $file2

[c99tutorial]

I'm guessing you may want to process the output from grep line by line? Then you could use this kind of loop

grep -iE "$regexp" "$file1" | \
while read
do
    echo "$REPLY"
done

The while loop will execute once per line of output from the piped command. The read command puts the read line into the REPLY environment variable. You could then put in that block whatever you'd like to do