EV_BACKCMD
|| ((flags & EV_BACKCMD) != 0
if (flags & EV_BACKCMD) {
(cmd->ncmd.redirect == NULL || (flags & EV_BACKCMD) == 0) &&
flags & EV_BACKCMD ? pip : NULL);
if (flags & EV_BACKCMD) {
flags &= ~EV_BACKCMD;
if (flags == EV_BACKCMD) {
if (flags == EV_BACKCMD) {
if (flags != EV_BACKCMD)
evalcommand(n, EV_BACKCMD, result);