SYSTEM— Execute a shell command
system(3)). If argument STATUS is present, it contains the value returned by
system(3), which is presumably 0 if the shell command succeeded. Note that which shell is used to invoke the command is system-dependent and environment-dependent.
This intrinsic is provided in both subroutine and function forms; however, only one form can be used in any given program unit.
Note that the
system function need not be thread-safe. It is
the responsibility of the user to ensure that
system is not
|COMMAND||Shall be of default |
|STATUS||(Optional) Shall be of default |