Executes a system command.
The operator system_call executes the system command specified by the string pointed to by Command (C-procedure "system"). If the string is empty, an interactive shell will be started ('csh -i').
Command (input_control) |
string -> string |
Command to be called the system. | |
Default value: 'ls' |
If the entered operator can be executed by the system, the operator system_call returns the value TRUE. Otherwise an exception will be raised.