Executes an executable program and returns the exit code to GAUSS.
program (string) – the name of the program, including the extension, to be executed.
comline (string) – the arguments to be placed on the command line of the program being executed.
ret (scalar) –
the exit code returned by program.
If exec can’t execute program, the error returns will be negative:
file not found
the file is not an executable file
not enough memory
command line too long
ret = exec("atog", "comd1.cmd"); // If 'ret' is nonzero if ret; errorlog "atog failed"; end; endif;
In this example the ATOG ASCII conversion utility is
executed under the
exec() function. The name of the
command file to be used,
comd1.cmd, is passed to
ATOG on its command line. The exit code ret returned
exec() is tested to see if ATOG was successful;
if not, the program will be terminated after printing
an error message. See ATOG .