Linux du命令

[[email protected] ~]# ll
total 4
-rw-------. 1 root root 1422 Jun  9 02:30 anaconda-ks.cfg
[[email protected] ~]# du
32      .

[[email protected] ~]# ll -a
total 32
dr-xr-x---.  2 root root  151 Aug  2 23:07 .
dr-xr-xr-x. 17 root root  224 Jun  9 02:28 ..
-rw-------.  1 root root 1422 Jun  9 02:30 anaconda-ks.cfg
-rw-------.  1 root root 1259 Aug  3 18:02 .bash_history
-rw-r--r--.  1 root root   18 Dec 29  2013 .bash_logout
-rw-r--r--.  1 root root  176 Dec 29  2013 .bash_profile
-rw-r--r--.  1 root root  176 Dec 29  2013 .bashrc
-rw-r--r--.  1 root root  100 Dec 29  2013 .cshrc
-rw-r--r--.  1 root root  129 Dec 29  2013 .tcshrc
-rw-------.  1 root root  651 Aug  2 23:07 .viminfo
[[email protected] ~]# du -a
4       ./.bash_logout
4       ./.bash_profile
4       ./.bashrc
4       ./.cshrc
4       ./.tcshrc
4       ./anaconda-ks.cfg
4       ./.bash_history
4       ./.viminfo
32      .

[[email protected] ~]# ll /boot
total 121248
-rw-r--r--. 1 root root   147837 Jul 17 00:43 config-3.10.0-862.9.1.el7.x86_64
-rw-r--r--. 1 root root   147819 Apr 21 00:57 config-3.10.0-862.el7.x86_64
drwxr-xr-x. 3 root root       17 Jun  9 02:22 efi
drwxr-xr-x. 2 root root       27 Jun  9 02:23 grub
drwx------. 5 root root       97 Aug  2 23:10 grub2
-rw-------. 1 root root 55389819 Jun  9 02:27 initramfs-0-rescue-aabc275efe344987a996d5d8c1ba1e25.img
-rw-------. 1 root root 21165566 Aug  2 21:01 initramfs-3.10.0-862.9.1.el7.x86_64.img
-rw-------. 1 root root 21164735 Aug  2 21:02 initramfs-3.10.0-862.el7.x86_64.img
-rw-r--r--. 1 root root   305117 Jul 17 00:45 symvers-3.10.0-862.9.1.el7.x86_64.gz
-rw-r--r--. 1 root root   304926 Apr 21 01:00 symvers-3.10.0-862.el7.x86_64.gz
-rw-------. 1 root root  3412056 Jul 17 00:43 System.map-3.10.0-862.9.1.el7.x86_64
-rw-------. 1 root root  3409143 Apr 21 00:57 System.map-3.10.0-862.el7.x86_64
-rwxr-xr-x. 1 root root  6224704 Jun  9 02:27 vmlinuz-0-rescue-aabc275efe344987a996d5d8c1ba1e25
-rwxr-xr-x. 1 root root  6234048 Jul 17 00:43 vmlinuz-3.10.0-862.9.1.el7.x86_64
-rwxr-xr-x. 1 root root  6224704 Apr 21 00:57 vmlinuz-3.10.0-862.el7.x86_64

[[email protected] ~]# du /boot
0       /boot/efi/EFI/centos
0       /boot/efi/EFI
0       /boot/efi
2400    /boot/grub2/i386-pc
3176    /boot/grub2/locale
2504    /boot/grub2/fonts
8096    /boot/grub2
4       /boot/grub
129360  /boot

[[email protected] ~]# du -s /boot
129360  /boot

[[email protected] ~]# du -S /boot
0       /boot/efi/EFI/centos
0       /boot/efi/EFI
0       /boot/efi
2400    /boot/grub2/i386-pc
3176    /boot/grub2/locale
2504    /boot/grub2/fonts
16      /boot/grub2
4       /boot/grub
121260  /boot

[[email protected] ~]# du -s /boot/*
148     /boot/config-3.10.0-862.9.1.el7.x86_64
148     /boot/config-3.10.0-862.el7.x86_64
0       /boot/efi
4       /boot/grub
8096    /boot/grub2
54092   /boot/initramfs-0-rescue-aabc275efe344987a996d5d8c1ba1e25.img
20672   /boot/initramfs-3.10.0-862.9.1.el7.x86_64.img
20672   /boot/initramfs-3.10.0-862.el7.x86_64.img
300     /boot/symvers-3.10.0-862.9.1.el7.x86_64.gz
300     /boot/symvers-3.10.0-862.el7.x86_64.gz
3336    /boot/System.map-3.10.0-862.9.1.el7.x86_64
3332    /boot/System.map-3.10.0-862.el7.x86_64
6080    /boot/vmlinuz-0-rescue-aabc275efe344987a996d5d8c1ba1e25
6088    /boot/vmlinuz-3.10.0-862.9.1.el7.x86_64
6080    /boot/vmlinuz-3.10.0-862.el7.x86_64