Write a shell script to multiply four nos 
Program :-
echo
"utsav gohel - 91900104011"
# Write
a shell script to multiply four nos 
#!/bin/bash
echo
"Enter A =  "
read a
 
echo
"Enter B =  "
read b
echo
"Enter C =  "
read c
echo
"Enter D =  "
read d
multiply=$((
$a * $b * $c * $d ))
 
echo
"multiplication  of Four number is
.."
echo
$multiply
Output :-