Hi all,

i have a script.

When i run the script, on the prompt i use: $> . ./blah; i have an undefined variable error.

But when i run the script using $> ./blah ; it works fine.

I know it was something to do with FORK() process.

But i have a simple script , using while loop.

#!/bin/sh

answer=0

while [ "$answer" -gt 10 ];

do

echo "Hello"

done

It's complaining my "answer" variable.

How to fix the problem? Do i need to use PATH?

Please help

What is the difference between when it works and when it doesn't? To me they both look the same.

Your script, as copy+pasted from above, runs fine, although it never actually enters the loop, because $answer is 0. I get no complaints; and indeed, sh doesn't care whether you have explicitly defined a variable or not, and will not produce a complaint like the one you are reporting. Is it perhaps somehow being run by something else than /bin/sh?

Unquote $answer...

I'm sorry, but that's completely a red herring.

Does actually matter to run . ./blah or ./blah