shpid 62 usr/bin/sh/sh.c static pid_t shpid = 0; /* pid of shell */ shpid 79 usr/bin/sh/sh.c if (getpid() != shpid) shpid 449 usr/bin/sh/sh.c tcsetpgrp(2, shpid); shpid 458 usr/bin/sh/sh.c if (shpid == 0) shpid 459 usr/bin/sh/sh.c shpid = getpid();