I hate to be pedantic, but that is more commonly called the 'shebang' line, not 'hashbang'.
If you find something in the Jargon file, that means that most likely no one really talks that way.

I think 'hashbang' is pretty common, though 'shebang' is still heard occasionally.

In reply to Re^3: assosiating .pl files with perl on linux by doom
in thread assosiating .pl files with perl on linux by abhishes

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