linux 清理空间

1. 根目录下执行命令，查看每个目录下文件大小总和

root@vm10-88-88-3 /]# du -h --max-depth=1 
79M     ./tmp
123M    ./etc
4.0K    ./media
4.0K    ./srv
104M    ./boot
5.3G    ./var
0       ./sys
8.6M    ./dev
196G    ./usr
4.0K    ./mnt
285M    ./opt
87G     ./root
836K    ./run
7.8G    ./home

2.查询到root目录下有87G文件,搜索大于200M的文件

[root@vm10-88-88-3 /]# find /root  -size +200M -exec du -h {} \;
476M    /root/logs/ant/business.log.20240314
290M    /root/logs/ant/business.log.20240203
229M    /root/logs/ant/business.log.20240221
380M    /root/logs/ant/business.log.20240317
382M    /root/logs/ant/business.log.20240323
271M    /root/logs/ant/business.log.20240213
312M    /root/logs/ant/business.log.20240302
379M    /root/logs/ant/business.log.20240311
312M    /root/logs/ant/business.log.20240229
493M    /root/logs/ant/business.log.20240305
319M    /root/logs/ant/business.log.20240301
270M    /root/logs/ant/business.log.20240216
404M    /root/logs/ant/business.log.20240319

3.到对应目录下删除文件