As an aside, the construct ! grep EXPR, LIST is used in a boolean context. Either grep returns a list or it doesn't. ! evaluates in a boolean context. A list is TRUE and no list is FALSE.

I've used it a lot in extended EXPR's, so that I don't have to work through the negation of my && or || that sending if to unless (or vice-versa) would do.

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/me wants to be the brightest bulb in the chandelier!

In reply to Re: Re: font color="#ff0000"IF NOT! IF NOT!/font by dragonchild
in thread IF NOT! IF NOT! by Anonymous Monk

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