Linux Forgotten Root Password Recovery

There is plenty of ways, how to recover forgotten Linux password. My method is:

1. Burn Knoppix Linux CD (See website)

2. Start the system useing just burned CD.

3. In console window type:

[code]sudo mount -o remount,rw [/code]
4. Navigate to your Linux system folder – /etc/

5. Open the file named shadow and delete hashed password data from the Root user record or copy some known hashed password from some known user record to the Root user record.

Thats it.

XSLT and XPath selecting distinct nodes

It is a complicated task to select distinct nodes or to use grouping useing xslt. There are no simple syntax to write this type XPath query.

The work arround is quite difficult to remember, thats why i decided to duplicate internet content in my blog.

Let’s say, that the XML source is:

[code lang=”xml”]

[/code]Lets say, that the task is to select distinct nodes grouping by attribute1.The Xpath will look like this:

[code lang=”xml”]
//MyData[not(@attribute1=preceding-sibling::[email protected])][email protected]