The first question is usually "Why am I using UNIX as opposed to another operating system, such as DOS?", or "Why am I using UNIX instead of a mainframe or mini-computer?". This section provides an overview of the capabilities of the UNIX operating system, and why it is a preferred computing platform.
The standard Perl distribution comes with a debugger, although it's really just another Perl program, perl5db.pl. Since it is just a program, I can use it as the basis for writing my own debuggers to suit my needs, or I can use the interface perl5db.pl provides to configure its actions. That's just the beginning, though. read more...
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