Shell Script To The lines Of A Given File Such That 1st line become
last and last become 1st and so on

Shell Script:

clear
l=`cat m.txt | wc -l`
touch s1.txt
touch a1.txt
echo "Before reverse the file is:"
cat m.txt
echo "----------------------------------------"
for((i=1;i<=$l;i++))
do
cat m.txt | tail -n $i | head -n 1 > s1.txt
cat s1.txt >> a1.txt
done
cat 0< a1.txt 1> m.txt
echo "After reverse the file is"
cat m.txt


OUTPUT:

[admin@localhost line wise file reverse]$ sh lrev.sh
Before reverse the file is:
i am xyz
i read n vit
computer science department i kk
xyz is my name
i am xyz
xyz xyz xyz xyz xyz
----------------------------------------
After reverse the file is
xyz xyz xyz xyz xyz
i am xyz
xyz is my name
computer science department i kk
i read n rkmrc
i am vit