ibution. This lets you see what a Linux system is like without actually installing it. Most modern PCs can boot from a CD instead of the standard hard drive. To take advantage of this, some Linux distributions create a bootable CD that contains a sample Linux system (called a Linux LiveCD). Because of the limitations of the single CD size, the sample can’t contain a complete Linux system, but you’d be surprised at all the software they can cram in there. The result is that you can boot your PC from the CD and run a Linux distribution without having to install anything on your hard drive!
This is an excellent way to test various Linux distributions without having to mess with your PC.Just pop in a CD and boot! All of the Linux software will run directly off the CD. There are lots of Linux LiveCDs that you can download from the Internet and burn onto a CD to test drive.
Table below shows some popular Linux LiveCDs that are available.
You may notice a familiarity in this table. Many specialized Linux distributions also have a Linux LiveCD version. Some Linux LiveCD distributions, such as Ubuntu, allow you to install the Linux distribution directly from the LiveCD. This enables you to boot with the CD, test drive the Linux distribution, and then if you like it, install it on your hard drive. This feature is extremely handy and user-friendly.
As with all good things, Linux LiveCDs have a few drawbacks. Since you access everything from the CD, applications run more slowly, especially if you’re using older, slower computers and CD drives. Also, since you can’t write to the CD, any changes you make to the Linux system will be gone the next time you reboot.
But there are advances being made in the Linux LiveCD world that help to solve some of these problems. These advances include the ability to:
Some Linux LiveCDs, such as Puppy Linux, are designed with a minimum number of Linux system files and copy them directly into memory when the CD boots. This allows you to remove the CD from the computer as soon as Linux boots. Not only does this make your applications run much faster (since applications run faster from memory), but it also gives you a free CD tray to use for ripping audio CDs or playing video DVDs from the software included in Puppy Linux.
Other Linux LiveCDs use an alternative method that allows you to remove the CD from the tray after booting. It involves copying the core Linux files onto the Windows hard drive as a single file. After the CD boots, it looks for that file and reads the system files from it. The dyne:bolic
Linux LiveCD uses this technique, which is called docking. Of course, you must copy the system file to your hard drive before you can boot from the CD.
A very popular technique for storing data from a live Linux CD session is to use a common USB memory stick (also called a flash drive and a thumb drive). Just about every Linux LiveCD can recognize a plugged-in USB memory stick (even if the stick is formatted for Windows) and read and write files to and from it. This allows you to boot a Linux LiveCD, use the Linux applications to create files, store them on your memory stick, and then access them from your Windows applications later (or from a different
Shell Scripting Related Interview Questions
|Perl Scripting Interview Questions||Python Interview Questions|
|Linux Interview Questions||Linux Embedded systems Interview Questions|
|AWK Interview Questions||BioPerl Interview Questions|
|Sed (Stream Editor) Interview Questions||Advanced Linux Interview Questions|
|Unix/Linux Interview Questions||Unix Shell Scripting Interview Questions|
Shell Scripting Tutorial
Starting With Linux Shells
Getting To The Shell
Basic Bash Shell Commands
More Bash Shell Commands
Using Linux Environment Variables
Basic Script Building
Understanding Linux File Permissions
Working With Editors
Using Structured Commands
More Structured Commands
Handling User Input
Adding Color To Scripts
Introducing Sed And Gawk
The Ash Shell
The Tcsh Shell
The Korn Shell
The Zsh Shell
Using The Web
Using A Database
Shell Script For Administrato