DF of the Linux command

The function of the DF command in Linux is to check the disk space usage of the Linux server's file system. You can use this command to get information about how much space the hard disk is taking up, and how much space is left.

Grammar:

DF [-ahikhtm] [directory or file name]

Options and Parameters:

• -a: Lists all file systems, including system-specific/proc File system
• -k: Kbytes The capacity of the file system;
• -m: MBytes capacity displays each file system;
• -H: GBytes, MBytes, Kbytes and other formats that are easier for people to read;
• -h: Take m=1000k instead of m=1024k;
• -T: Displays the file system type, along with the filesystem name of the partition (for example, ext3);
• -i: No hard disk capacity, and the number of inode to display

Example 1

List all the file systems in the system!

[Email protected] ~]$ dffilesystem           1k-blocks      used Available use% mounted   on/dev/sda2 18339256 3550212  13857460  21%/tmpfs                   502304        +    502220   1%/dev/shm/dev/sda1     297485 33548    248577  12%/boot

Under Linux If DF does not have any options, the default is to list all of the system's (non-special in-memory file systems and Swaps) in 1 Kbytes capacity!

Example 2

Display capacity results in an easy-to-read capacity format

[Email protected] ~]$ df-hfilesystem            Size  used Avail use% mounted on/dev/sda2              18G  3.4G   14G  21%/tmpfs                 491M   84K  491M   1%/dev/shm/dev/sda1             291M   33M  243M  12%/boot

Example 3

List all special file formats and names in the system

[Email protected] ~]$ df-athfilesystem    Type    Size used Avail use% mounted on/dev/sda2     ext4     18G  3.4G   14G  21%/proc          proc       0     0     0   -  /procsysfs        sysfs       0     0     0   -  /sysdevpts      devpts       0     0     0   -  /dev/ptstmpfs        tmpfs    491M   84K  491M   1%/dev/shm/dev/sda1     ext4    291M   33M  243M  12%/bootnone   Binfmt_misc       0     0     0   -  /proc/sys/fs/binfmt_miscvmware-vmblockfuse.vmware-vmblock       0     0     0   -  /var/run/vmblock-fuse

Example 4

Displays the available disk capacity under/etc in an easy-to-read capacity format

[Email protected] ~]$ df-h/etcfilesystem            Size  used Avail use% mounted on/dev/sda2              18G  3.4G   14g< c6/>21%/

DF of the Linux command