HTCondor use of<single: HTCondor use of; argv[0]>
When HTCondor starts up your job, it renames argv[0] (which usually contains the name of the program) to condor_exec. This is convenient when examining a machine's processes with the Unix command ps; the process is easily identified as an HTCondor job.
Unfortunately, some programs read argv[0] expecting their own program name and get confused if they find something unexpected like condor_exec. user manual<single: user manual; HTCondor> user manual