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Shell Programming and Scripting

Expr Syntex error

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# 1  
Old 10-10-2011
Expr Syntex error
Hello, I am new to Shell programing.
I want to add two numbers & show result. command I use are as under
Code:
Echo Enter the two numbers
read number
d1 = ` expr $ num%10`
num = `expr $ num/10`
d2 = ` expr $ num%10`
num = `expr $ num/10`
sum = $ d1 + $ d2
echo the sum is $ sum

I am getting expr syntax error

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Mod Comment Video tutorial on how to use code tags in The UNIX and Linux Forums.
Last edited by Franklin52; 10-11-2011 at 03:15 AM.. Reason: Please use code tags, thank you
# 2  
Old 10-10-2011
Try
Code:
d1=`expr $num % 10`

(i.e. no spaces before or after the assignment, no spaces between a $ and a variable name, but with spaces between expr arguments)
This User Gave Thanks to CarloM For This Post:
pbchhaya
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