SPUG: finding directory of script

[Daryn Nakhuda]

Is there a best way to get the directory containing the script 
you're running? or a way to use relative paths from that 
directory to read files? 

1. pwd,cwd both return the directory you're running the script from 
(working directory), not where it lives.

2. using ./ or ../ is going to be relative to the working dir, not the 
script's dir

3. $0 could be used, but you'd have to parse for a ./ or no /, and in 
those cases use the working dir. 

I don't mind using #3, that would always work, right?

-daryn


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