Tuesday, July 14, 2009

LINUX USE AND WORK WITH "VI EDITOR"


The editor found nearly every UNIX and LINUX system is “VI editor”, originally written by Bill Joy. It is simple to use but incredible capable editor features of the some cryptic commands set. Older more experienced UNIX and LINUX user continue to use “VI” intensively during computing session.

The “VI” commands work by using insect or editing mode and a viewing (or command mode).

To start editing, tap the ! key to insert text. Or to append text, when finish use ESC key to toggle out of the insert or append modes and into the viewing (or command mode) to enter a command type a semicolon (;) write the file name and press . The “VI” supports many complex editing operations and numerous commands, to accomplish work by using a few basic commands.

DESCRIPTION

COMMANDS

CURSOR MOVEMENT

h, j, k, l (left, down, up & right).

DELETE CHARACTER

x.

DELETE LINE

dd.

MODE TOGGLE

ESC, insert (or i).

QUIT

q.

QUIT WITHOUT SAVING

q!

RUN AS SHELL COMMAND

Sh (use “exit” to return).

SAVE FILE

w.

TEXT SEARCH

/.

Saturday, July 11, 2009

TAKE IT EASY LINUX INSTALLATION


Ø To get start, first insert the RED HAT LINUX CD in CD-ROM and reboot the computer, first scene boot screen that offer the variety of option for booting.

Ø start the installation using graphical interface. The graphical interface supported a mouse and offer check boxes and text field for choosing software, configuring options.

Ø After check CD-ROM or skipping the checking, presented with a welcome screen, press to continue and then select the language for the installation.

Ø Then it will ask to select a keyboard. Choose the appropriate keyboard option which can be used to configure Linux support a specific language.

Ø Select the mouse type for Linux session, and also Linux support USB devices, including USB mice.

Ø To select the new partition on the hard drive, use add partition dialog box assign a mount point (such as /root/) assign a file system (like ext2, ext3, RAID, SWAP etc) assign the size of the partition and then press OK.

Ø Then screen appears asking to select a boot loader for booting RED HAT LINUX, GRUB and LILO are two types of boot loader it installed in the first sector of the Linux partition.

Ø And then to enter password, it will subsequently need to enter three passwords (BIOS, boot loader and login) in order to access Linux, then highlight OK and press .

Ø If installed the network adopter so select the graphical network Administration tools. Then insert the networking configuration information, when finish click OK and select firewall configuration.

Ø The medium setting might be acceptable for use and Internet protected by the firewall and served by an Internet gateway.

Ø And then select to install the software. If choose the personal desktop, workstation, or other installation type, the software packages appropriate for that installation will be selected. Each package provides many different individual software packages.

Ø After finishing the installation press OK and RED HAT LINUX will eject any inserted CD in CD-ROM. Reboot system the GRUB boot loader will present a graphical boot prompt and LILO boot loader also provide a graphical display…

LINUX CHECKING HARDWARE COMPATIBILITY


RED HAT LINUX software for Intel-based PCs is compiled for the minimum x 86 platforms supported by the Linux Kernel, x 386 CPUs family.

If a particular Laptop or PC model, it should also check with it manufacturer for Linux support issue. Enlightened manufacturer now offer Linux preinstalled or have in-house Linux hardware certification programs.

Friday, July 10, 2009

LINUX PREPARING FOR HARD DRIVE STORAGE

Making room of RED HAT LINUX how to use existing hard drive space it use only one operating system on computer. A full install of Linux will require at least 5GB hard drive space just for the software, so if plan to install everything, 10GB hard drive will be ideal for a workstation.