LINUX 磁盘空间已满

[root@bogon ~]# du -hs /var/log/*
4.0K    /var/log/aide
4.0K    /var/log/amanda
......
1.1G    /var/log/messages
308K    /var/log/messages-20120315
416K    /var/log/messages-20120318
......

[root@bogon ~]# echo >/var/log/messages