Blog Komunitas Linux

Pico is a text editor for Linux. It isn’t a GUI text editor like OpenOffice, but it resides in a terminal window. So the interface is sparse and you get around mainly with keyboard commands. So why would I want to use a text editor with no GUI? Well, Pico is very lightweight, fast, can handle fairly large files and is on just about every Linux distro. I use Pico for tweaking PHP and HTML files on the server.

Vi and emacs are the heavy hitters of the non-GUI, terminal window based text editors. They are extremely powerful, and in the hands of a Jedi text editing master, can often perform complex text-editing tasks far faster than a large, clunky GUI based “modern” text editor.

If you are in the terminal window, and want to edit index.HTML, type this:

Pico index.HTML [enter]

Moving Around:
Easy, huh? Now what? Well, for newbies, the easiest way to move around is to use the arrow keys on the keyboard. Look for the text insertion cursor, which is shaped like a tall rectangle. Move the cursor around a bit to get used to it.

Editing Text:
Now, to write something, just place the cursor where you want to start writing and write! If you make a typing mistake, put the cursor right over the mistake and kit the delete key on the keyboard. The typo is gone. Now type the correct letter.

Saving Files:
To save a file in Pico and then quit the program type this:

[control-key] x [enter]

You’ll see a message at the bottom that says: “Save modified buffer (ANSWERING NO WILL DESTROY CHANGES”). At this point, we want to save changes, so type:

y [enter]

This will save the file with the original name of the file and quit the program. You could have renamed the file before hitting the enter key.

Open a new file in Pico:
At the terminal window, type:

pico [enter]

To save the file:

1. control-key x
2. y
3. type name of file [enter]

Getting around in Pico is a little daunting at first, but after just a bit of practice it becomes second nature. We have only touched on a few of the basic Pico commands here. While not as powerful as vi or emacs, Pico handles those small text editing jobs with aplomb. Once you’ve mastered the basics here, explore the other Pico commands by typing this in the terminal window:

man pico

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BULAN PUASA DILARANG CROTZ GAN APALAGI CRITZ

BEGITU banyaknya penyedia jasa layanan internet baik itu di warnet dan sekrang dengan adanya layanan speedy memudahkan para pengguna internet untuk bermain baik itu di rumah, sekolah ataupun di kantor.

Dewasa ini akses situs porno di Indonesia meningkat dengan tajam, bukan saja orang dewasa yang mengakses situ terlarang tersebut bahkan sekarang anak-anak kecil tingkatan smp sudah pintar mengakses situs tersebut. Kenapa mereka mengakses karena mareka diberikan kebebasakan dengan cukup mengetikankan kata-kata yang berbau pornograpi maka dalam hitungan detik semua situs tersebut terpampang di depan mata. Akankah orangtua membiarkan hal tesebut dilakukan oleh anak-anak mereka.

Untuk memblokir semua situs yang anggap terlarang maka kita perlu membuat sebuah proxy server bisa dipakai untuk semua jenis distro linux, disini saya menggunakan Ubuntu 10.04. Hal utama yang saya harus install adalah squid. Pada pembahasan kali ini saya akan mencoba konfigurasi squid dengan menggunakan webmin, karena kemudahan konfigurasi.

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AKSES internet memberikan kenyamanan sendiri bagi pengguna internet dewasa ini, segala sesuatunya bisa di cati internet. Router salah satu kebutuhan yang harus ada dalam menggembangkan koneksi jaringan yang sifatnya sharing bagi komputer lain. Semua modem sekarang sudah memiliki perangkat router di dalamnya yang memudahkan bagi pengguna untuk membagi koneksi baik itu di warnet, disekolah, di kantor dan lain sebagainya.

Kenapa kita menggunakan PC sebagai router, apakah modem tersebut tidak cukup ? Alasannya memudahkan maintenance dan PC router bukan saja menggunakan 1 koneksi internet tetapi pada PC router bisa juga menggunakan sampai 3 koneksi internet. Sebenarnya alasan saya yang mendasar adalah untuk memudahkan pembangian IP pada client dengan mengguanakn DHCP server yang didata berdasarkan mac address.

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Based on his own experience, and I am sure this is useful for the linuxer a new study. Some time ago I wrote up a long time, since the Internet is not stable, the text finally disappeared.
I try to write longer current.
Current ok .. we need is a system that was installed Slackware 12 linux, linux kernel, compilers and other support.

Let us begin ..
1. Download the kernel at kernel.org

Please complete version and revised in accordance with the current kernel development. Instead of confusion, here I am using kernel 2.6.23.13.

2. Extract the kernel
Our assumption is at the user’s home directory, then please change yourself to become root.

3. Compile First Stage
Since we are only going to upgrade the kernel at the moment, so please copy the old kernel config from / boot directory.

4. Sym-link Create a new kernel archives
In this section we also need to create a symbolic link (shortcut) created a new linux kernel. Previously, first delete the symbolic links are created by Slackware (default).

If so, please enter the linux directory, then do compile there. Why can compile there are several options:

make menuconfig (text mode)
make xconfig (graphical mode, QT)
make gconfig (graphics mode, GTK)
make oldconfig (use text mode configuration of the old kernel)

5. Kernel compile
On occasion this time, I use make menuconfig, because it can be done during the gcc compiler installed. The advantage lies in the perfection of Linux-based system configuration text, almost all system administration can be done through the console (of course would be fatal if the system was taken over by hackers, you can imagine is not it?

6. Copy the kernel image, config, and the new System.map
If you find errors, please review each step. If normal and there is no problem, we’ll copy the kernel image that has been compiled into the / boot directory

7. Create initrd
please make initrd to the kernel can load the root partition. Still in the directory / boot please execution:
Note that the partition / dev/hda1 is the partition where the root partition is located, so adjust with each of my friends system. Mode can check with the command fdisk-l or df-h.

8. Edit Lilo
Changing Lilo to boot into the new kernel. If you are, reloading Lilo.

9. Time to try the new kernel
Reboot is a thrilling moment, pray also be used to
If there is an error (hopefully there ga yes) please select LinuxICU to boot into the old kernel

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The biggest advantage of using Linux is that it can help reduce TCO. TCO stands for “Total Cost of Ownership”, which is the total amount of the computer will cost you during your lifetime. The operational life ends when the team finally turns upside down and dies, or becomes unusable due to hardware failure, etc.

A part of this equation is the slope of the TCO software vendors “to constantly upgrading their software, even when the updates are not really necessary. And usually software companies will be updated every year or so. The key here is that older software is usually invalidated by the latest software that puts the consumer in the position of being forced to upgrade. Microsoft and Apple are pretty good in this little game of upgrade or become obsolete.

Let’s say you bought “WordMaster 2007″, then proceeded to create a pile of documents WordMaster 2007. Everything was fine until a few years later, when everyone else is using WordMaster 2010, and guess what, the 2007 version does not open documents WordMaster 2007 because of all the “progress” made by the 2010 version. So there they are, caught in the upgrade cycle. You (and your company, perhaps) are forced to upgrade.

In Linux, there is no updated game played by firms trying Week every dollar from his pocket. Since there is really no incentive to make money from its sales of software, the updates come when real changes are made to benefit the end user. Linux companies no money from the sale of software, but support. Normally, the Linux operating system and software are free, but the company using the software they need support, which is a paid service.

Another advantage of using Linux is running on lower end hardware quite well. Take that team out of the closet five years. Remove the hard drive and install Linux. The computer age, I never ran so fast. The Linux operating system uses less resources and does not seem to get bogged down like a typical Windows system after a few months of use.

A final advantage is that there are a lot of great programs for Linux that are free. Yes, free. There are many things that a Linux computer can not do. If you want to burn a CD or DVD, no problem, no software for it. If you want to do in 3D or 2D graphics take a look at Blender and The Gimp. For word processing and spreadsheet, Open Office is a wonderful alternative. Linux comes with an application to replace most of your Windows applications, free of charge.

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# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type “man xorg.conf” at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# Note that some configuration settings that could be done previously
# in this file, now are automatically configured by the server and settings
# here are ignored.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section “Device”
Identifier    “Configured Video Device”
EndSection

Section “Monitor”
Identifier    “Configured Monitor”
EndSection

Section “Screen”
Identifier    “Default Screen”
Monitor        “Configured Monitor”
Device        “Configured Video Device”
EndSection

# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type “man xorg.conf” at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# Note that some configuration settings that could be done previously
# in this file, now are automatically configured by the server and settings
# here are ignored.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section “Device”
Identifier “VIA Technologies, Inc. P4M890 [S3 UniChrome Pro] (rev 01)”
Driver “vesa”
BusID “PCI:1:0:0″
EndSection

Section “Monitor”
Identifier “Configured Monitor”
EndSection

Section “Screen”
Identifier “Default Screen”
Monitor “Configured Monitor”
Device “VIA Technologies, Inc. P4M890 [S3 UniChrome Pro] (rev 01)”
EndSection

- Mini cartridge : dapat menampung data sebesar 250 MB sampai 8 GB).
- Videotape/Videocassette (Pita Video/Kaset Video) : merupakan alat penyimpanan komputer yang banyak ditemui dipasaraan.Videotape terdiri dari berbagai macam format, baik dalam format analog maupun digital. Format analog misalnya VHS, S-VHS ataupun format berkualitas broadcast, yaitu : Betacam, Format digital dapat dalam MiniDV, DVC-Pro,DVCAM, HDCAM, Hi8, DVHS, atau format digital untuk kualitas broadcast Betacam Digital.

Untuk membaca atau menulis pada suatu magnetic tape adalah secara sequential. Artinya untuk mendapatkan tempat suatu data maka data yang didepannya harus dilalui terlebih dahulu.
Maka dapat dikatakan organisasi data pada file didalam tape dibentuk secara sequential dan metode aksesnya juga secara sequential

Akses langsung terhadap record lambat
Masalah lingkungan
Memerlukan penafsiran terhadap mesin
Proses harus sequential