hi Unix gurus,
Pls consider the following piece of code
str='hello'
length=echo $str|wc -c
echo $length
y= ` expr \( 80 - $length \) `
echo $y

The last echo stmt is displaying 0 as the result.
If i put direct value like 6 instead of $length in i 3rd stmt it is giving the correct result.
I came to know that $length is not getting accessed inside of expr command.


any help pls.


cheers
Ravi Raj Kumar