UNIX for Dummies Questions & Answers

for i in `cat file2`
do
   count=`grep $i file1 | wc -l`
   echo "Word $i from file2 occured $count time in file1"
done

for i in `cat cc1`
do
   count=`grep $i cc | xargs -n1 | grep $i | wc -l`
   echo "Word $i from cc1 occured $count time in cc"
done

awk 'NR==FNR{x[tolower($1)];next}{
	for(i=1;i<=NF;i++)
		if(tolower($i) in x)
			y[tolower($i)]++}END{
	for(i in y)
		print i,y[i]
}' file2 file1