getjob
STATIC struct job *getjob(const char *, int);
jp = getjob(name, 1);
jp = getjob(arg_ptr, 0);
jp = getjob(*argptr, 0);
showjob(out1, getjob(*argptr,0), mode);
last = jp = getjob(*arg, 1);
jp = getjob(*argptr, 0);