Re: Addition to unix: raw ByteString APIs

On Mon, Nov 14, 2011 at 9:45 AM, Brandon Allbery wrote:

On Mon, Nov 14, 2011 at 12:05, Balazs Komuves wrote:

...

Unfortunately, there is no standardized way on different unix systems to access the path of the executable running (it's not even fully clear what it means in the presence of symlinks, etc). Actually it seems to be impossible to do this (without argv[0]) on certain BSD systems.

Also note: - argv[0] won't be a full pathname if the program was found via $PATH search

Well yes, granted it's not reliable under all possible circumstances and all possible unixes. But it works fine for a personal tool run under controlled circumstances. I wound up just always calling it as '$program $(dirname $program)' which is a bit noisy but works fine.