Just a perl 5 physicist here. I had to run to the Camel book to find out that grep existed in the world of perl. But I have done this (from memory):
$stuff_in_lines = `grep suntide *.txt`; I never thought about the potential for serious ambiguity in interpretation. The UNIX grep tool is really dissimilar considering that it uses a different regular expression syntax. -- --> Halloween == Oct 31 == Dec 25 == Christmas <--
