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Re^3: This is not a pipeby pijll (Beadle) |
on Mar 12, 2005 at 13:59 UTC ( [id://438912]=note: print w/replies, xml ) | Need Help?? |
-p is a test operator, so your expression is more or less equivalent to a question: "Is _ (=this) not a pipe?".
At least in Unix, '|' is not a valid filename, so -p '|' will always be false: "Is '|' a pipe? No.". So the ASCII representation of a pipe, '|', is never a pipe itself, which is exactly what Magritte meant with his painting.
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