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Ubuntu: Mount Encrypted Home Directory (~/.private) From an Ubuntu Live CD

Recently my old desktop system crashed and I brought a new Ubuntu Laptop from Dell. To access my data from old hdd; I've attached my desktop harddisk using an external USB case. Now my old data is stored using external USB hard disk. How do I recover data from encrypted ~/.private home directory using an Ubuntu Live CD and copy it to existing laptop drive using known passphrase?
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HowTo: Find Out MySQL Server Version Number

How do I find out mysql server version number under UNIX / Linux operating systems?
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Linux Generate RSA SSH Keys

How do I generate ssh RSA keys under Linux operating systems?
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Ubuntu: Find CPU Information / Speed

How do I find out CPU Information such as speed, processor, and cache under Ubuntu Linux operating systems?
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How To: Rename A File In Bash

How do I rename a file in bash under UNIX / OS X / Linux / BSD operating systems?
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Linux Gnome: Add Open Terminal Here / Open Shell Prompt Here Right Click Menu To a File Manager

Question: How do I open a shell prompt or gnome-terminal at the current location while browsing directories and files via nautilus file manager? I'd like to see Open Terminal / Prompt here option added to my right click menu. How do I open command prompt in a single selected directory or otherwise in current directory?
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Thunderbird Move Mail / Settings From Desktop Computer To Laptop

Q. How do I move my Thunderbird email client settings from Debian Linux desktop to a new Ubuntu Linux laptop? I've installed Thunderbird on Ubuntu Linux but not able to find any import or export option. How do I move settings?
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Ubuntu Linux Install GDesklets GNOME Program

Q. How do I install GDesklets GNOME program under Ubuntu Linux to enhance my desktop?
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Linux: Resetting a user’s password

Q. How do I reset a user's password under any Linux distribution from command prompt?

A. To reset a user's password, use passwd command. You have to change it to a different password.

Login as the root user

Open terminal or shell prompt

Type the following command:
# passwd username
For example, reset a tom's password, enter:
# passwd tom
Type a new password twice.

Ubuntu Linux: Upgrade Linux Kernel

Q. How do I upgrade my Linux kernel version under Ubuntu Linux 7.04 / 7.10?

A. You can use any one of the following method:
(a) Command Line Tools - apt-get

(b) GUI tool

apt-get command - Upgrade Linux Kernel

Open terminal and type the following commands:
$ sudo apt-get update
Now search kernel version:
$ apt-cache search kernel-image
Now install kernel by explicitly specifying version number:
$ sudo apt-get install linux-image-2.6.xx-yy-generic
Replace xx.yy with kernel version number. Reboot the system.

GUI tools

This is recommended method for most user. Click on System > Administration > Update Manager > Click on Check button > Apply all updates including kernel.