當調用ipcs -a
時,key
列和id
列有什麼區別?共享內存:密鑰和ID有什麼區別?
下面是ipcs
命令的示例輸出:
ipcs -a
------ Shared Memory Segments --------
key shmid owner perms bytes nattch status
0x00000000 0 ybaumes 600 393216 2 dest
0x00000000 65537 ybaumes 700 8124648 2 dest
0x00000000 3932163 ybaumes 700 169376 2 dest
0x00000000 3604485 ybaumes 600 393216 2 dest