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semop KEY,OPSTRING Calls the System V IPC function semop(2) for semaphore operations such as signalling and waiting. OPSTRING must be a packed

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Bitwise String Operators Bitstrings of any size may be manipulated by the bitwise operators (~ | & ^).

glob EXPR glob In list context, returns a (possibly empty) list of filename expansions on the value of EXPR

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Integer Arithmetic By default, Perl assumes that it must do most of its arithmetic in floating point. But by saying

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