unset a readonly variable
 

This is a simple one. I am following a great bash guide. On handy feature is setting read-only variables, ie:

rx=hello

echo $hello
hello

readonly rx

Now that I can't change rx accidently. Fine, but let's say I now want to make it updatable again. The guide doesn't mention this. Is this possible with eg, "write rx" or something similiar?

unset rx
bash: unset: rx: cannot unset: readonly variable

hamster.

It's not possible to unset this var, only restarting bash ...

Oh really? Thanks for telling me. Couldn't track that down too easily.