commandline tab completion question

I have recently started at a new place of work and am faced with a new version of linux to work with

In my previous job the linux servers I would work on would tab complete environment variables which I found very useful

In my current job the linux servers don't seem to give tab completion on environment variables with either bash or tcsh

Is this an unusual feature

Is there anyway I can switch it on myself without having admin rights for the servers

its a really handy feature which I would like back

thanks