I just have a problem with "rm" command, it cannot return space?

I use linux Fedora Core4. Normally, rm command will delete file(s) and then give me back a space. Yesterday, I deleted file "/home/www/web3/log/error.log" which was 17GB of its size. After deleting, the available size on my server (viewed by using "du -kh" ) was still the same as before deletion. Could anyone help me to solve this, and how can I do?

 

Sorry, I have made a mistake posting question

du -kh <-- this return the correct free space (current + deleted file).

BUT

df -h <--- this return the same amount of disk space before and after deletion.

How can I really free my space using "rm" command?

 

command "ls -la" didn't show the deleted file.

thank you very much, for your help

 

Then it's gone. Does

Code:

df -h

still show the wrong results?

 

That's right. "df -h" shows the wrong result.

Anyway "du -kh" show the correct. But the problem is, ISPConfig also shows the result which same as "df -h". And when there is 100% usage, user cannot receive email or upload file.

Upload via FTP program is OK.

 

Can you post the outputs of both commands?