Linux Random Password Generator

I was looking for a random password generator tool to use it while creating oracle users. And found a cool solution that works on a linux OS.
It works using linux urandom function:

tr -dc A-Za-z0-9_ < /dev/urandom | head -c 8 | xargs

Here, i'm using head -c 8 to show me 8 character long password.

If you feel that the command is tough to memorize. Then just create a function and call it!!!

genpasswd() {

        local l=$1

        [ "$l" == "" ] && l=16

        tr -dc A-Za-z0-9_ < /dev/urandom | head -c ${l} | xargs

}

Now simply call it with your intented string length..

genpasswd 8

EMI_EeCa

Isn't it cool!!! :)