system_call — Execute a system command.
system_call( : : Command : )
system_call executes the system command given in
On Windows operating systems, the system command can be prefixed by
'start /b' to avoid waiting for the started application.
On Unix-like operating systems, an interactive shell ('csh -i') will be started,
Command contains an empty string.
Command to be called by the system.
Default value: 'ls'
On Windows operating systems,the operator
system_call will always
return the value 2 (H_MSG_TRUE) unless there was a problem creating a new process.
On other operating systems,
system_call will always return
the value 2 (H_MSG_TRUE).