For reference, that -f thing is documented at -X. (It's hard to search for, is why I'm linking.)

$_="msh210";$"=$\;@_=@{[split//,uc]}[2,0];$_="@_$\1";$\=$/;++$_[0]for$...1;print lc substr crypt($_,"@_"),1,6

In reply to Re^5: create array of empty files and then match filenames by msh210
in thread create array of empty files and then match filenames by angela2

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