fuser用于标识访问文件或socket的进程信息。下面以经常会遇到的不能卸载光驱为例,讨论fuser的用法:
1).卸载光驱文件系统:
[root@vserver01 ~]# umount /mnt
umount: /mnt: device is busy
umount: /mnt: device is busy
2).找出依然在访问该文件系统的进程号:
[root@vserver01 ~]# fuser -c /mnt
/mnt: 2563c
[root@vserver01 ~]# ps -ef | grep 2563
root 2563 2499 0 15:19 tty1 00:00:00 -bash
root 5462 5383 0 16:11 pts/0 00:00:00 grep 2563
3).kill进程:
[root@vserver01 ~]# kill -9 2563
[root@vserver01 ~]# ps -ef | grep 2563
root 5488 5383 0 16:11 pts/0 00:00:00 grep 2563
4).成功卸载光驱文件系统:
[root@vserver01 ~]# umount /mnt
[root@vserver01 ~]#
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