$ wc -l /usr/share/dict/words
234937 /usr/share/dict/words
$ ./1056884.pl
548: a e i l n r s t

$ wc -l /tmp/2of12inf.txt
81536 /tmp/2of12inf.txt
$ ./1056884.pl /tmp/2of12inf.txt 
337: a e i n p r s t