Re^2: Check for another program availability

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Re^3: Check for another program availability by haukex (Archbishop) on Apr 12, 2021 at 05:34 UTC
I see, but, would that be portable? I mean, the which program itself may not be available. That's correct, it's not portable, and I don't agree with the above advice, also due to the use of backticks (see Calling External Commands More Safely). which is just a short shell script (at least on Debian), it's not magic.	[reply]
Re^3: Check for another program availability by perlfan (Parson) on Apr 12, 2021 at 10:15 UTC
> portable You didn't say it had to be "portable on Windows".	[reply]
Re^4: Check for another program availability by hrcerq (Monk) on Apr 12, 2021 at 11:55 UTC
It doesn't. But even on Unix I have no guarantee that which will be installed on the system.	[reply]
Re^5: Check for another program availability by Tux (Canon) on Apr 12, 2021 at 13:50 UTC
That exactly. And additionally, "which" might produce considerably different results in a (perl) script than on the command prompt, as some shells have "which" as a builtin or alias, so people think they have which (program) but in fact use the shell functionality. Enjoy, Have FUN! H.Merijn	[reply]
Re^6: Check for another program availability by eyepopslikeamosquito (Archbishop) on Apr 12, 2021 at 23:51 UTC