I have written the shell script to illustrate arithmetic operations using case command as shown below:
Code:
#!/bin/bash
echo -n "Enter any two numbers :"
read a
read b
MENU="
Select any one option
1) Addition
2) Substraction
3) Multiplication
4) Division
5) Quit"
clear
$x=0;
while [ $x -ne 5 ]
do
echo "$MENU"
echo ""
echo -n "Please make your choice "
read x
echo ""
case $x in
1) echo $[a+b] ;;
2) echo $[a-b] ;;
3) echo $[a*b] ;;
4) echo `$[a/b]| bc -l `;;
5|q|Q) exit 0 ;;
6) clear
echo "Please choose from the alternatives 1, 2, 3, 4 or 5"
sleep 1 ;;
esac
done
echo ""
Problem is when even in compiling this script it takes the input and shows the following error:
Code:
math.sh: line 15: =0: command not found
math.sh: line 17: [: -ne: unary operator expected
I would be more than happy if anyone can help me out.
Thank you.
Moderator's Comments:
You go to the trouble of adding [b]...[/b] to highlight code, when it's just as easy using [code]...[/code]. Please use the [code]...[/code] option next time. Thanks
Last edited by Scott; 07-12-2010 at 01:57 PM..
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07-12-2010
