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    POSIX compliance & GNU tools

    Hi guys, I'm fairly new to the Mac world... in fact I'm brand new to it (I just ordered me a new Powerbook Ti, due to arrive sometime early March -- just in time for the first release of OS X), but I've been around in the UNIX and Linux world for a fair bit (I started playing with BSD UNIX...
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    Can unix commands be called from a C program?

    There are actually 3 major ways of executing a UNIX command from within a C program, namely exec(), system(), and popen(). The exec() family of system calls replaces the currently running process with the new process in question. This is usually used in conjunction with fork() to create a...
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