[SOLVED] Difference between the commands 'df' and 'du'

anjumanu321 · 07-04-2012, 12:41 PM

hello all,

hope you are all doing good.

I tried these two commands: df and du
Both are giving different outputs.For example:

df -h gives the output as:
/dev/mapper/vg-lv1 42G(Size) 22G(Used) 18G(Avail) 56%(Use) /

whereas du -sh /root gives the output as:
6.0G /root

Why is it showing different sizes for the same partition and which of those commands is showing the exact size?

Thanks,
Anji

TobiSGD · 07-04-2012, 12:44 PM

Because your root partition is named / and not /root. You have asked du for the size of your root user's home directory.

pan64 · 07-04-2012, 12:45 PM

because those are two different partitions. Try mount, or df to find out your mounts (or partitions)

anjumanu321 · 07-04-2012, 01:39 PM

got it now

thanks for the replies.

--
Anji