FWIW, I switched an alias I use somewhat frequently (mostly for test code/data or for throwaway passwords) to generate UUIDs. Problem isn’t important, just that it was easy to do. Install–

~>git clone https://github.com/tadzik/rakudobrew ~/.rakudobrew
~>export PATH=~/.rakudobrew/bin:$PATH
~>rakudobrew build moar v6.c
~>rakudobrew build-panda
~>panda install UUID
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Switch alias from Perl to Perl6–

~>which uuid
uuid:  aliased to perl -MData::UUID -le 'print Data::UUID->new->create
+_str'
~>emacs .aliases
~>which uuid
uuid:  aliased to perl6 -MUUID -e 'say ~UUID.new'
~>uuid
ed10881e-dac6-431a-a8ae-9ba2a49be8bc
[download]