ncdu 命令可以用来查看和分析 Linux 中各目录对磁盘空间占用情况的工具。

[root@wangjianxiong ~]# rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpm

Retrieving https://dl.fedoraproject.org/pub/epel/epel-release-latest-6.noarch.rpmwarning: /var/tmp/rpm-tmp.DWv51E: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEYPreparing...                ########################################### [100%]   1:epel-release           ########################################### [100%][root@wangjianxiong ~]# ls /etc/yum.repos.d/epel.repo  epel-testing.repo  media.repo

[root@wangjianxiong ~]# yum -y install ncdu

Loaded plugins: fastestmirror, refresh-packagekit, securityLoading mirror speeds from cached hostfile * epel: mirrors.ustc.edu.cnSetting up Install ProcessResolving Dependencies--> Running transaction check---> Package ncdu.x86_64 0:1.11-1.el6 will be installed--> Finished Dependency Resolution

Dependencies Resolved

======================================================================================================================================================

 Package                          Arch                               Version                                   Repository                        Size======================================================================================================================================================Installing: ncdu                             x86_64                             1.11-1.el6                                epel                              43 k

Transaction Summary

======================================================================================================================================================Install       1 Package(s)

Total download size: 43 k

Installed size: 76 kDownloading Packages:https://mirrors.ustc.edu.cn/fedora/epel/6/x86_64/ncdu-1.11-1.el6.x86_64.rpm: [Errno 14] Peer cert cannot be verified or peer cert invalidTrying other mirror.ncdu-1.11-1.el6.x86_64.rpm                                                                                                     |  43 kB     00:00     warning: rpmts_HdrFromFdno: Header V3 RSA/SHA256 Signature, key ID 0608b895: NOKEYRetrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6Importing GPG key 0x0608B895: Userid : EPEL (6) <epel@fedoraproject.org> Package: epel-release-6-8.noarch (installed)

 From   : /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6

Running rpm_check_debugRunning Transaction TestTransaction Test SucceededRunning TransactionWarning: RPMDB altered outside of yum.  Installing : ncdu-1.11-1.el6.x86_64                                                                                                             1/1   Verifying  : ncdu-1.11-1.el6.x86_64                                                                                                             1/1

Installed:

  ncdu.x86_64 0:1.11-1.el6                                                                                                                           

Complete!

[root@wangjianxiong ~]# ncdu /

ncdu 1.11 ~ Use the arrow keys to navigate, press ? for help                                                                                                                                  

--- / -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------    4.2 GiB [##########] /media                                                                                                                                                                    2.9 GiB [######    ] /usr  174.3 MiB [          ] /var  148.0 MiB [          ] /lib   36.5 MiB [          ] /etc   25.6 MiB [          ] /lib64   23.8 MiB [          ] /boot   13.8 MiB [          ] /sbin    7.2 MiB [          ] /bin    1.4 MiB [          ] /root  392.0 KiB [          ] /dev   68.0 KiB [          ] /tmpe  16.0 KiB [          ] /lost+found   12.0 KiB [          ] /.dbus    8.0 KiB [          ] /opte   4.0 KiB [          ] /srve   4.0 KiB [          ] /mnte   4.0 KiB [          ] /home    0.0   B [          ] /sys.   0.0   B [          ] /proc    0.0   B [          ] /selinuxe   0.0   B [          ] /nete   0.0   B [          ] /misc    0.0   B [          ]  .autofsck

 Total disk usage:   7.5 GiB  Apparent size:   7.5 GiB  Items:

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