also make, which is stuck at 3.81 (2006) sort appears to be (2005), and doesn't have the -R flag for shuffling also missing: head -n -NUM (all but last NUM li

also make, which is stuck at 3.81 (2006) sort appears to be (2005), and doesn't have the -R flag for shuffling also missing: head -n -NUM (all but last NUM lines) and tail -n +NUM (all but the first NUM lines)