df du linux空间清理，查看文件大小

[root@localhost /]# df -h
Filesystem               Size  Used Avail Use% Mounted on
/dev/mapper/centos-root  8.3G  5.4G  2.9G  66% /
devtmpfs                 911M     0  911M   0% /dev
tmpfs                    921M     0  921M   0% /dev/shm
tmpfs                    921M  8.4M  912M   1% /run
tmpfs                    921M     0  921M   0% /sys/fs/cgroup
/dev/sda1                497M  164M  334M  33% /boot
www                      274G  166G  108G  61% /www
phpwww                   197G   15G  183G   8% /phpwww
vagrant                  274G  166G  108G  61% /vagrant
tmpfs                    185M     0  185M   0% /run/user/0
[root@localhost /]#

[root@localhost /]# cd /usr/local/
[root@localhost local]# du -h --max-depth=1
0       ./bin
0       ./etc
0       ./games
0       ./include
0       ./lib
0       ./lib64
0       ./libexec
0       ./sbin
4.0K    ./share
0       ./src
385M    ./jdk1.8
524M    ./es
297M    ./jdk11
1.1G    ./kibana7.5.1
319M    ./logstash
76M     ./filebeat
2.7G    .
[root@localhost local]#