Re: [Haskell-cafe] Happy: PATH issue

Am Montag 03 Mai 2010 00:28:31 schrieb Ivan Lazar Miljenovic:

Daniel Fischer writes:

...

If the default shell is bash and the PATH is set and exported in ~/.bashrc, it should work with '~' unless the string is quoted, shouldn't it? bash expands the tildes when the value is assigned to PATH, I think. That would explain why it's a relatively rare breakage.

bash expands it when you use it within bash, but when it's used within another program this might not be the case (since the PATH is just a String after all).

But does that string contain any '~'s? I think not (unless quoted). I believe the string that is assigned to PATH is already expanded (if you have export PATH=~/.cabal/bin:$PATH in your .bashrc and the right hand side weren't expanded, you'd be in serious difficulties - it is not unthinkable that $PATH is expanded, but not the tilde, but that would be pretty odd).