Addendum: Every Getopt::Std test suite ever distributed Perl, going back to 5.004_04, tests for this behavior. So now I would really like to see your experiments.

I personally believe that you're right. More precisely, you're obviously right. Anyway I probably just tried to add an unknown switch to a cmd line that worked:

C:\temp>runn.pl -q
Unknown option: q
Usage: C:\temp\runn.pl [-n N] [-r] [-v] command arg1 arg2...
Run command arg1, command arg2, etc., concurrently.
Run no more than N processes simultaneously (default 1)
    -r: run commands in random order instead of specified order (unimp
+l.)
    -v: verbose mode

C:\temp>runn.pl -n 2 dir *.txt *.pl -q
exec: No such file or directory at C:\temp\runn.pl line 27.
exec: No such file or directory at C:\temp\runn.pl line 27.
exec: No such file or directory at C:\temp\runn.pl line 27.

[download]

IPB that the latter should exit early printing the usage screen too.

In reply to Re^5: Parallelization of heterogenous (runs itself Fortran executables) code by blazar
in thread Parallelization of heterogenous (runs itself Fortran executables) code by Jochen

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