How do I start smbclient from a script in Linux?

How do I start smbclient from a script in Linux?

I want to be able to quickly start smbclient to a specific directory
without typing or copying it to the shell command line, but just sticking
it in a script doesn't seem to work...
#!/bin/csh
smbclient -W blah -U name -D "really long directory location" server/service
I've made it executable, but when I run it via ./smbcommand it does
nothing. Normally if I execute it from the command line, it asks for a
password.