Re: User opinion needed: What shell should GNU Parallel use?

[Thompson, Matt (GSFC-610.1)[SCIENCE SYSTEMS AND APPLICATIONS INC]]

On 05/23/2014 08:43 AM, Ole Tange wrote:
> One idea is to let it depend on which shell it is currently running
> under: If the script starts with #!/bin/bash or #!/bin/tcsh then use
> that shell. It will also make sense if, say, your login shell is tcsh,
> but the first thing you do is to start Bash. I am not really sure how
> to detect that, but it can probably be done.]

I will say that I presumed that this was the behavior (rightly or 
wrongly). That is, I'm writing a bash script so everything inside is 
"bash" for lack of a better word. Make sense now that I know a bit more 
of what parallel actually does.

But, as you say, it is a bit odd to figure out what the script might 
purport to be inside the script. The loader uses magic to interpret 
shebangs, right? Man, there could be some fancy, subtle security issues 
with some possibilities here...

Matt

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Matt Thompson          SSAI, Sr Software Test Engr
NASA GSFC, Global Modeling and Assimilation Office
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