system_call — Execute a system command.
system_call( : : Command : )
The operator system_call executes the system command given in Command.
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, if 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).