What is D's version of C++'s system function?

Question

How do I execute a command in the system shell in D (preferably Tango)?

Answer 1

tango.stdc.stdlib should, as tango's docs say,

provide[s] an essentially complete interface to the standard C library (according to ISO/IEC 9899:1999)

(stdlib.h is where C defines system).

Answer 2

Phobos provides std.process (D1.x) (D2.x). Then you would just use the system() call. The exec commands are also available here.