htcondor test

job.jdl

universe = vanilla
executable = job.sh
log = /dev/null
should_transfer_files = YES
transfer_input_files = job.sh
when_to_transfer_output = ON_EXIT
output = out.txt
error = err.txt
notification = Never
initialdir = /afs/cern.ch/user/m/mrieger/htctest
+MaxRuntime = 300
+RequestRuntime = 300
MY.WantOS = el8
arguments = 123
queue

job.sh

#!/bin/bash

action() {
    _law_exe_exists() {
        command -v "$1" &> /dev/null
    }

    _law_python() {
        # forward to python if it exists, otherwise to python3
        _law_exe_exists python && python "$@" || python3 "$@"
    }

    echo "running job.sh, argument 1: $1"
    echo "----------------"
    echo "python   : $( _law_exe_exists python && echo "$( 2>&1 python --version ) from $( which python )" || echo "missing"  )"
    echo "python3  : $( _law_exe_exists python3 && echo "$( 2>&1 python3 --version ) from $( which python3 )" || echo "missing"  )"
    echo "tmp dir  : $( _law_python -c "from tempfile import gettempdir; print(gettempdir())" )"
    echo "----------------"
}
action "$@"