Question: I want to delete the file '2915158693.shtml';
but the system shows: 

> 
> rm: cannot remove `2915158693.shtml': Operation not permitted.
> 
> 
> 

How to delete the file?

```
[root]# lsattr ../ |grep 0721
----------I---- ../0721
[root]# lsattr 2915158693.shtml
--------------- 2915158693.shtml
[root]# id -u
0
[root]# rm 2915158693.shtml
rm: remove write-protected regular file `2915158693.shtml'? y
rm: cannot remove `2915158693.shtml': Operation not permitted
[root]# 

```

Answer: 
`chmod 700 2915158693.shtml && chown root:root 2915158693.shtml` and then try removing it
Do this as root to remote file 

```
#chattr -i 2915158693.shtml
#rm -f 2915158693.shtml

```

For more info [refer this link](http://www.cyberciti.biz/tips/how-to-delete-write-protected-file.html)