1、 显示目前所有文件系统的可用空间及使用情形,h表示使用 GB、MB 等易读的格式
[root@rusky ldap]# df -h
Filesystem Size Used Avail Use% Mounted on/dev/sda2 3.8G 1.9G 1.8G 51% //dev/sda1 46M 9.2M 35M 22% /boottmpfs 506M 0 506M 0% /dev/shm/dev/sda3 14G 2.5G 11G 19% /home.host:/ 83G 38G 46G 45% /mnt/hgfs ----这个是挂载的主机与vmware共享文件夹所在的分区情况2、查看该文件夹的总大小
du -sh 查看当前目录大小,-s表示显示目录总大小,否则,列出该目录下所有子目录文件大小
[root@rusky ldap]# du -h --max-depth=0 apache-tomcat-6.0.37 或者直接进入该目录下,使用命令:du -sh即可查询
5.3M apache-tomcat-6.0.373、 显示bin目录的大小
[root@rusky ldap]# du -h --max-depth=0 apache-tomcat-6.0.37/bin
323K apache-tomcat-6.0.37/bin4、显示apache-tomcat-6.0.37这个文件夹里各个文件或文件夹的大小
[root@rusky ldap]# du -h --max-depth=0 apache-tomcat-6.0.37/*
324K apache-tomcat-6.0.37/bin100K apache-tomcat-6.0.37/conf2.7M apache-tomcat-6.0.37/lib19K apache-tomcat-6.0.37/LICENSE0 apache-tomcat-6.0.37/logs512 apache-tomcat-6.0.37/NOTICE4.5K apache-tomcat-6.0.37/RELEASE-NOTES8.5K apache-tomcat-6.0.37/RUNNING.txt0 apache-tomcat-6.0.37/temp2.2M apache-tomcat-6.0.37/webapps0 apache-tomcat-6.0.37/work5、查看单个文件的大小
[root@rusky bin]# du -h bootstrap.jar
12K bootstrap.jar====================
du 用来查看某个目录所占空间大小
语法:du [-abckmsh] [文件或者目录名] 常用的参数有:-a:全部文件与目录大小都列出来。如果不加任何选项和参数只列出目录(包含子目录)大小。-b:列出的值以bytes为单位输出,默认是以Kbytes-c:最后加总-k:以KB为单位输出-m:以MB为单位输出-s:只列出总和-h:系统自动调节单位,例如文件太小可能就几K,那么就以K为单位显示,如果大到几G,则就以G为单位显示。常用du –sh filename[root@rhel7 /]# du -sh /usr 803M /usr[root@rhel7 /]# du -ch /usr/ --递归目录里所有文件,列出大小,最后总和。......4.0K /usr/libexec/os-probes/init8.0K /usr/libexec/os-probes/mounted/efi68K /usr/libexec/os-probes/mounted80K /usr/libexec/os-probes24K /usr/libexec/plymouth0 /usr/libexec/tuned32K /usr/libexec/man-db8.2M /usr/libexec/postfix12M /usr/libexec0 /usr/local/bin0 /usr/local/etc0 /usr/local/games0 /usr/local/include0 /usr/local/lib0 /usr/local/lib640 /usr/local/libexec0 /usr/local/sbin0 /usr/local/share/applications0 /usr/local/share/info0 /usr/local/share/man/man10 /usr/local/share/man/man1x0 /usr/local/share/man/man20 /usr/local/share/man/man2x0 /usr/local/share/man/man30 /usr/local/share/man/man3x0 /usr/local/share/man/man40 /usr/local/share/man/man4x0 /usr/local/share/man/man50 /usr/local/share/man/man5x0 /usr/local/share/man/man60 /usr/local/share/man/man6x0 /usr/local/share/man/man70 /usr/local/share/man/man7x0 /usr/local/share/man/man80 /usr/local/share/man/man8x0 /usr/local/share/man/man90 /usr/local/share/man/man9x0 /usr/local/share/man/mann4.0K /usr/local/share/man4.0K /usr/local/share0 /usr/local/src8.0K /usr/local0 /usr/src/debug0 /usr/src/kernels0 /usr/src803M /usr/803M total[root@rhel7 /]# du -h --max-depth=0 /usr/ ----该命令等同于:du -sh /usr 803M /usr/[root@rhel7 /]# du -h --max-depth=1 /usr/ ---统计第1级目录的大小,最后也有总的大小54M /usr/bin38M /usr/sbin372M /usr/lib123M /usr/lib64202M /usr/share0 /usr/etc0 /usr/games5.3M /usr/include12M /usr/libexec8.0K /usr/local0 /usr/src803M /usr/[root@rhel7 /]#