[SOLVED] how do I find the %usage of /opt

[sunny8107]

All,
I have tried du -hcs command which gives me the total usage, i am interested to know how much unused space I have, total size etc. I looked into the df command but I think that is only for mounted file systems which would work for /opt. I tried

df -h | grep opt and it returned nothing.

Thanks in advance.

[Rubberman]

Try "df -h /opt" instead. Often /opt is mounted on /, so your technique would not show anything grepping for opt.

[sunny8107]

Thanks, that was what I was looking for!