General :: Storing A Variable In A Shell Script After Awk Output?

On command line I have no problem storing a variable e.g

Code:

:~/bin$ process=`ps -ef | awk ' $8 == "idesk" { print $2 }'`
:~/bin$ echo $process
26736
:~/bin$

When I try to incorporate this into a shell script I get a blank.

Code:

:~/bin$ cat process_idesk
#!/bin/bash
process=`ps -ef | awk ' $8 == "idesk" { print $2 }'`

[code]....

The process_idesk script has been chmoded to be executable by the user. I'm sure there must be a silly omission on my behalf.