A RegExp should be fine, depending on how many times you have to do this. I'm not sure if \0 will match your zeros, but give an expression like this a try: 
     s/\0+$//;

[download]
which will nuke all zeros at the end of a string

twerq update -- looks like someone beat me to the punch :)

In reply to Re: How do I remove trailing zeros from a hex string? by twerq
in thread How do I remove trailing zeros from a hex string? by donfreenut

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