One Linux command per day: DF

1. Introduction to Commands

DF Disk free Displays information about the file system in which each file resides, by default displaying all file systems.

2. Usage

[ options ] [ file ]...

3. Option 4, Example 1: Show disk usage

DF Filesystem     1K-blocks     Used Available use% mountedon/dev/sda3       9668477216938944  74827812  %/tmpfs            1961140           1961060   1%/dev/shm/dev/sda1         194241    93321     90680  Wuyi%/boot

Example 2: Display disk usage in a humane way

DF -hfilesystem      Size  used Availuse% mountedon/dev/sda3        93G   17G   72G  %/           tmpfs1. 9G   80K  1. 9G   1/dev/ shm/dev/sda1       190M   92M   89M  wuyi/boot

Example 3: The-h parameter is the same on the-H root, but the capacity is converted by 1000 instead of 1024 when the radical is applied

DF -hfilesystem      Size  used Availuse% mountedon/dev/sda3       100G   18G   77G  /tmpfs           2. 1G   82k  2. 1G   1/ dev/shm/dev/sda1       199M   96M   93M  wuyi/boot

Example 4:-k display of disk usage in units

DF -kfilesystem     1K-blocks     used Available use% mounted on/dev/sda3        9668477216938944  74827812  %/tmpfs            1961140           1961060   1/dev/shm/dev/sda1          194241    93321     90680  %/boot

Example 5: Display disk usage in Inode mode

DF -i Filesystem      inodes  iused   IFree iuse% mountedon/dev/sda3       61521921655305986662    3%/tmpfs           490285      5  490280    1%/dev/shm/dev/sda1        51200     wuyi   51149    1%/boot

Model 6:-L displays local partition disk space usage, filtered NSF drive Results

[Email protected] ~]$DF-hDF: '/run/user/1002/Gvfs ': Permission deniedfilesystem Size used Avail use%mounted on/DEV/MD126P3 919G 61G 858G7% /Devtmpfs3.8G0  3.8G0% /Devtmpfs3.8G2.0G1.9G the%/dev/Shmtmpfs3.8G 89M3.7G3% /Runtmpfs3.8G0  3.8G0%/sys/fs/Cgroup/DEV/MD126P1 493M 123M 371M -% /Boot100.17.82.13:/backup/test 81T 32T 49T +% /Rman_remote_backup[[email protected]~]$DF-LHDF: '/run/user/1002/Gvfs ': Permission deniedfilesystem Size used Avail use%mounted on/DEV/MD126P3 919G 61G 858G7% /Devtmpfs3.8G0  3.8G0% /Devtmpfs3.8G2.0G1.9G the%/dev/Shmtmpfs3.8G 89M3.7G3% /Runtmpfs3.8G0  3.8G0%/sys/fs/Cgroup/DEV/MD126P1 493M 123M 371M -% /Boot[[email protected]~]$

Example 7: Displaying information about the file system where a file resides

DF -h/etc/Filesystem      Size  used Availuse% mountedon/dev/sda3        93G   17G   72G  %/

One Linux command per day: DF