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Submission + - The thing that cannot be Googled

tetsuo29 writes: So, I'm dissecting a Perl script that a co-worker wrote and not being very familiar with Perl, I have no idea yet what the line "$| = 1;" means. In trying to google for it, I've discovered that "$|" cannot be searched for by Google. Try it. It doesn't even return the standard page that says:

Your search — "[search terms]" — did not match any documents


        * Make sure all words are spelled correctly.
        * Try different keywords.
        * Try more general keywords.

The results page is the equivalent of Google nothingness. Now, I think that "$|" is somehow related to and therefore probably CGI in general, but still shouldn't the brilliant coders at Google be able to code for this and index this as a search term so that clueless dolts like me can google for it to find out what it means?

So, I ask you Slashdotters:

    * What does '$| = 1;' mean in Perl?
    * Is there a way to google for that term?
    * Has anyone else found any text that Google will return 'Google nothingness' as I've described it?

Brain off-line, please wait.