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Message: [QUOTE="John Bokma, post: 4832096"] Like the perl executable is not guaranteed to be available for execution? Tell me something new. My point. If the external program does perfectly its work (my prerequisite) then it's available for execution. Your mistaken (no that's not something new). Instead of copying perfectly working (prerequisite) functionality to Perl, I decided to use the aforementioned external program. Or does the program not depend on the functionality if you write it yourself? Yes, and hence I argue with you. Moreover you just confirmed that I was right with my reading between the lines instead of using a straw man :-D (not a surprise there). This is Usenet. You jumped in (agree with him), so I discuss with you and am aware that as a side effect I might reach David as well. It's you who should read better. " " How that can refer to a specific set of examples is a bit beyond me. Maybe you can clarify? "Depends on what you're doing of course." If you need an example, Abigail mentioned one involving grep. I know, it's not ls and I hope you can live with that. But like I said earlier, you seem to agree with it (I wrote something along "read it between the lines"). You just confirmed that you *do* agree with it (few paragraphs up). I disagree with "generally preferable" which sounds to me too much like: "Using external programs from Perl programs considered harmful". People (like you, I am afraid) take it too serious. Also, if you agree with someone, and jump into a public discussion, don't be so amazed that people start to agree or disagree with you. This is Usenet, remember. If you write a Perl program that has to be portable "a [external] program that does already its work perfectly" implies that it's available. So your second point (portability) is void, unless you want to imply that every Perl program has to be written portable because you can. As for your first point: I have a gut feeling that fork overhead is overrated and in cases it plays an important role it might be very well the case that Perl itself is an option, making your first point somewhat void as well. Yet I seem to have less problems with it. But even if you're right, we're talking about programming here. [/QUOTE]

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