Re^2: Getting the absolute path of a script, without PWD (update)

Yup sorry, bad title. It's not the absolute path of the script I want, but the "current directory" in absolute path format. By the way, $0 and __FILE__ also do not seem to resolve symlinks so I'm guessing perl gets them from the shell also.

Comment on Re^2: Getting the absolute path of a script, without PWD (update)

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Re^3: Getting the absolute path of a script, without PWD (update) by LanX (Saint) on Jul 15, 2021 at 13:06 UTC
You've replied to my update without reading it. getcwd and cwd are different and it's clearly documented Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]
Re^4: Getting the absolute path of a script, without PWD (update) by perlancar (Hermit) on Jul 15, 2021 at 23:45 UTC
I've tested both `cwd()` and `getcwd()` before, and looked at the source. They both resolve symlinks. And the `pwd` and `PWD` variable from bash are not the same. UPDATE:Okay, so when we type `pwd` in bash by default we get the shell builtin, not the external Unix utility (`/bin/pwd` on my system). And the shell's `pwd` defaults to -L (logical) and we get the bash PWD. The external Unix utility defaults to -P (physical) which resolves symlinks. And if we run /bin/pwd -L, it still retrieves from PWD environment variable. Confirming my original question, we do need PWD and there's no way in Perl we can get the same version without PWD.	[reply]


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