Linux - disk free command (df)

1 - About

disk free command (df) is a storage function that can give you the free space.

3 - Example

df -h

Filesystem            Size  Used Avail Use% Mounted on
                       17G   16G     0 100% /
/dev/sda1              99M   12M   82M  13% /boot
tmpfs                 1.5G     0  1.5G   0% /dev/shm

4 - Difference between du and df

du shows the space by file whereas df shows the space by block of file.

<WRAP tip round> If there is a big difference in their output, try to see if some deleted file are not held by a process as open.

Example with linux and lsof

lsof /device | grep -i deleted


If this is the case, you need to restart the process to reclaim this buffers. </note>

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