[root@ opt]# df -h文件系统容量 已用 可用 已用%% 挂载点/dev/mapper/systemvg-rootlv7.9G 5.4G 2.2G 72% /tmpfs 3.9G 12K 3.9G 1% /dev/shm/dev/vda1 194M 57M 127M 31% /boot/dev/mapper/systemvg-homelv2.0G 68M 1.9G 4% /home/dev/mapper/systemvg-optlv375G 164G 192G 47% /opt/dev/mapper/systemvg-tmplv2.0G 68M 1.9G 4% /tmp/dev/mapper/systemvg-usrlv9.9G 4.3G 5.2G 46% /usr/dev/mapper/systemvg-varlv5.0G 466M 4.3G 10% /var[root@ opt]# du -h --max-depth=14.0K./certificate1.3M./svc336K./report182M./symantec1.7M./epps19G./CI9.9M./recommend20K./logs15M./pis664K./sec306M./CIPackage8.0K./testlog880K./cislog4.8G./epp8.0G./SONAR4.0K./git216K./cmflogs20K./IBM892K./zabbix16K./lost+found1.1M./wildfly16K./salt92K./fundlog6.0M./sdslog131G./.m28.0K./shp848M./jenkinsslave6.4M./tempFile3.6M./gsdslog192K./file19M./search28K./saas216K./tmsp285M./jboss296K./cimslog14M./scf7.6M./fms92K./fsp36K./files8.0K./filebakTest2.5M./log36K./mbfe164G.[root@ opt]#
查看磁盘使用情况 df -h
查看当前文件路径下，所有文件夹大小
opt/目录下 主要是.m2占用空间
查看某目录下所有文件夹以及大小：
[root@CI]# du -h --max-depth=1 jenkins/4.0Kjenkins/test1.7Mjenkins/updates436Kjenkins/logs1.1Mjenkins/users8.0Kjenkins/userContent4.0Kjenkins/jenkins.diagnostics.ooom.OutOfOrderBuildMonitor12Kjenkins/labels4.5Gjenkins/jobs-bacup012913Gjenkins/jobs148Mjenkins/plugins340Kjenkins/nodes4.9Mjenkins/fingerprints4.6Mjenkins/bak83160Kjenkins/secrets17Gjenkins/
