[root@izbp1a5bxfhn1z9v5lvirhz ~]# cd /
[root@izbp1a5bxfhn1z9v5lvirhz /]# du -sh *
2.1G backup
0 bin
250M boot
3.1G data
0 dev
121M etc
208M home
0 lib
0 lib64
16K lost+found
4.0K media
513M mnt
0 none.0
490M opt
du: cannot access ‘proc/7410/task/7433/fd/319’: No such file or directory
du: cannot access ‘proc/29479/task/29479/fd/3’: No such file or directory
du: cannot access ‘proc/29479/task/29479/fdinfo/3’: No such file or directory
du: cannot access ‘proc/29479/fd/3’: No such file or directory
du: cannot access ‘proc/29479/fdinfo/3’: No such file or directory
0 proc
697M root
528K run
0 sbin
4.0K srv
0 sys
56K tmp
2.1G usr
22G var

var目录都22G了不知道能不能清理一些垃圾文件？