1 2 3 4 5 6 7 8 9 10
#sorted sort -k2,2g IPC_RMID 0 IPC_SET 1 IPC_STAT 2 IPC_INFO 3 SHM_LOCK 11 SHM_UNLOCK 12 SHM_STAT 13 SHM_INFO 14 SHM_STAT_ANY 15