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Using and Porting GNU Fortran

8.11.9.241 System Intrinsic (subroutine)

CALL System(Command, Status)

Command: CHARACTER; scalar; INTENT(IN).

Status: INTEGER(KIND=1); OPTIONAL; scalar; INTENT(OUT).

Intrinsic groups: unix.

Description:

Passes the command Command to a shell (see system(3)). If argument Status is present, it contains the value returned by system(3), presumably 0 if the shell command succeeded. Note that which shell is used to invoke the command is system-dependent and environment-dependent.

Some non-GNU implementations of Fortran provide this intrinsic as only a function, not as a subroutine, or do not support the (optional) Status argument.

For information on other intrinsics with the same name: See section 10.5.2.132 System Intrinsic (function).