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  • The Unix OS does not know about the fact that the job script is in fact a script. Instead the job script is considered an executable file in ELF format. As the job script is not in ELF format the "Exec format error" is raised.
  • This situation can occur if the Unix OS is not configured to consider a default shell for shell scripts.
    • This problem has been reported e.g. for use with Alpine Docker container images starting from 3.15 using Java 17.
  • Job scripts should specify the shell to be used by indicating a shebang in the first line of the script.

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