National Instruments 320682C

Chapter 8 Utility Library

Refer to your DOS documentation for further help with command.com. DOS executables

(.exe, .com, and .bat files) use the settings in _default.pif (in your Windows

directory) when they are running. You can change their priority, display options, and more by

editing _default.pif or by creating another .pif file. Refer to your Microsoft Windows

documentation for help on creating and editing .pif files.

Parameter

Input fileName string Pathname of executable file and

arguments.

Return Value

result integer Result of operation.

Return Codes Under UNIX

0 Command was successfully started.

-1 The system-imposed limit on the total number of processes under execution or the

total number of processes per user would be exceeded. This limit is determined

when the system is generated.

-2 There is insufficient swap space for the new process.

-3 vfork failed for unknown reason.

-4 Search permission is denied for a directory listed in the path prefix of the new

process image file, or the new process image file denies execution permission, or

the new process image file is not a regular file.

-5 The length of the path or file, or an element of the environment variable PATH

prefixed to a file exceeds {PATH_MAX}, or a pathname component is longer than

{NAME_MAX} while {_POSIX_NO_TRUNC} is in effect for that file (see man

page for pathconf(2V)).

-6 One or more components of the pathname of the new process image file do not

exist.

-7 A component of the path prefix of the new process image file is not a directory.

-8 The number of bytes used by the new process image's argument list and

environment list is greater than {ARG_MAX} bytes (see man page for

sysconf(2V)).

-9 The new process image file has the appropriate access permission, but is not in the

proper format.