Module: Kernel (Ruby 2.3.0) - Ruby-Doc.org: Documenting the Ruby Language
static VALUE rb_f_backquote(VALUE obj, VALUE str) { VALUE port; VALUE result; rb_io_t *fptr; SafeStringValue(str); rb_last_status_clear(); port = pipe_open_s(str, "r", FMODE_READABLE|DEFAULT_TEXTMODE, NULL); if (NIL_P(port)) return rb_str ......