Mark Statement

clear
echo "enter stud's name:"
read name
echo "enter roll no:"
read roll
echo "enter mark in p1:"
read m1
echo "enter mark in p2:"
read m2
echo "enter mark in p3:"
read m3
echo "enter mark in p4:"
read m4
echo "enter mark in p5:"
read m5
echo "enter mark in p6:"
read m6
clear
echo "......."
echo "result"
echo "......."
echo "name:$name"
echo
echo "roll no:$roll"
echo
echo "M.Tech"
echo
echo "p1:$m1"
echo
echo "p2:$m2"
echo
echo "p3:$m3"
echo
echo "p4:$m4"
echo
echo "p5:$m5"
echo
echo "p6:$m6"
echo
echo "Total:`expr $m1 + $m2 + $m3 + $m4 + $m5 + $m6`"
echo
echo "Average:`expr $m1 / 6 + $m2 / 6 + $m3 / 6 + $m4 / 6 + $m5 / 6 + $m6 / 6`%"
echo
if [ $m1 -gt 50 -a $m2 -gt 50 -a $m3 -gt 50 -a $m4 -gt 50 -a $m5 -gt 50 -a $m6 -gt 50 ]
then
echo "Pass"
else
echo "Fail"
fi
echo
echo "......"