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I am using a shared SLURM cluster. I am trying to get the path of the bash script from inside the script itself.

There is already an excellent thread here: https://stackoverflow.com/questions/59895/get-the-source-directory-of-a-bash-script-from-within-the-script-itself. Unfortunately, none of those solutions work for me. They work when I execute the bash script normally, but not when I submit the script as a job. I tried $BASH_SOURCE, $0, $_, and readlink /proc/$$/fd/255. They all return something like /cm/local/apps/slurm/var/spool/jobXXXXXX/slurm_script, which is a path auto-generated by SLURM and has nothing to do with the script I submitted. I doubt there are any other solutions that directly answer my question that are not already mentioned, but is there maybe some way to override whatever the cluster is doing? Can I somehow restore standard bash behavior?

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    It seems to me like you have recovered the name of the script: /cm/local/apps/slurm/var/spool/jobXXXXXX/slurm_script. What were you expecting instead, and why does it have to be different?
    – Jeff Schaller
    Commented Feb 5, 2019 at 16:30
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    Why do you think that is not the path of the script that's executing?
    – Jeff Schaller
    Commented Feb 5, 2019 at 16:33
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    I don't use slurm, but it's conceivable to me that the system would copy the source script to a worker node in some sort of spooling directory for that node to execute it. Sounds like you might have different expectations?
    – Jeff Schaller
    Commented Feb 5, 2019 at 16:37
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    SLURM copies your script. On a SLURM cluster, you may not even have a home directory, so the working directory may well be at another path than what you would see when you run your script locally.
    – Kusalananda
    Commented Feb 5, 2019 at 16:38
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    I've gone in a circle now, so I may have to give up, but -- you start off knowing the path of your script and then you find the new location when run by slurm, but now you want to know the original location?
    – Jeff Schaller
    Commented Feb 5, 2019 at 16:47

1 Answer 1

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The problem was resolved in the comments.

To summarize: It turns out that I did not properly diagnose the initial problem. SLURM did not modify $BASH_SOURCE or $0. I assumed it simply executed my script, but it actually copied my script to a new location (/cm/local/apps/slurm/var/spool/jobXXXXXX/slurm_script). To get the behavior I expected, I submitted the job with the --wrap parameter which wraps the specified command string in a shell script.

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