[OT] bash help

[Mike Wright]

Hi all,

My brain cell ran away from home.  I have an incredibly simple script 
that doesn't do what I expect.  I use "mkdir DIR; cd DIR" a lot so I'm 
trying to put it in a script: "~/bin/mdcd".

After checking that $1 exists:

dir="$1"
mkdir -p "$dir"
cd "$dir"   <------ never executes

The directory is created so there is no error there.

Huh? Insight anyone?

Thanks,
Mike Wright