Does glob help? 
use strict;
use warnings;

print "$_\n" for glob '{a,b}cd{f,g,h}';

__END__
acdf
acdg
acdh
bcdf
bcdg
bcdh

[download]

Does output order matter?

If this does not suit your purposes, please give a couple more examples, showing exact output.

In reply to Re: Find all string permutations by toolic
in thread Find all string permutations by Gangabass

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