Linux Basics 99 Q (iv) _unix Linux

Four, under the Linux "God Soldier Weapon": 15 Questions

What is 55.KDE and what is the characteristic?

The KDE project, launched in October 1996, is designed to create a complete and easy-to-use desktop environment on the X-window. KDE now has the heavyweight software of KFM (similar to IE4.0), KPresenter (like PowerPoint), Killustrator (like CorelDRAW or Illustrator), And thoughtful user GUI configuration software can help users configure unix/linux, so that it is popular with the user.

But because KDE is based on the QT library developed by the Trolltech company, it has received a lot of criticism. Although Qt itself is excellent as a cross-platform development tool based on C + +, unfortunately it is not free software. QT's license allows anyone to use QT to write free software and free copies to other users, but if you use Qt to write freeware, you need to buy their license. More importantly, no one can modify the QT source code at will. If the Trolltech company changes the QT License, the company closes or buys the person to be able to cause KDE to be undone.

What is 56.GNOME and what is the characteristic?

In August 1997, in order to overcome the difficulties of QT license protocol and single C + + dependencies encountered by KDE, the 250 programmers led by Miguel de Icaza in Mexico started a new project, completely from the beginning, which is gnome.

After 14 months of joint efforts, finally completed the project. Gnome now has the support of the largest issuer of Linux market, Red Hat, with a large number of applications, including word processing software go, spreadsheet software gnumeric, calendar program gnomecal, and Photoshop Comparable to graphic image processing software such as GIMP.

Now GNOME and KDE have become two competing camps that will make Linux easier to use.

57. How do I play CDs under Linux?

After you successfully drive your sound card in a Linux environment, you can play the CD by using a CD player in X-window, which is in the multimedia tool. The interface is shown in the following illustration:

58. Can I play VCD under Linux?

You can use the MPEGTV Player 1.0 under this Linux VCD player to achieve your wish. Installing Mpegtvplayer does not require a special hardware device and can be used only by running X window.

It imitates the video recorder's playback control key, such as: play, fast forward, fast rewind, stop, Freeze, search, volume adjustment, Static sound, volume balance, loop playback, screen amplification, automatic playback and so on. The playback process displays the time and time spent on the entire program.

You can download MPEGTV play at the following site

59. Is there a Linux MP3 play tool?

Linux has a lot of MP3 play tools, where mpg123 should be the most classic, it can be used in the console. Many graphical interface mp3 playback software Use this program to play MP3. Here are some of its basic parameter descriptions:

-A device sets the sound device used, preset to/dev/audio or/DEV/DSP

-@ file reads the list of MP3 file names to play from the file file

-Z Play randomly

If you want to simply play one or two songs, or to play a whole list of songs, using mpg123 is a good choice, if the more complex features such as the selection of multiple directories within the specific MP3 file, it may need to write a script to execute.

60. How to browse the Web page under Linux?

To browse the Web, you need to meet two conditions:

1 Your computer is connected to the Internet;

2 use browser software to achieve browsing; there are two common browsers under Linux:

Lynx can be used under the control table;

Netscape's Linux version can be used in X-window;

They are used in a way that is basically similar to browsers in Windows.

61. How to send and receive e-mail under Linux

Under Linux you can use mail, pine in the console command line to send and receive e-mail, in the X-window can use KMail to collect e-mail.

62. Can I have Linux display Chinese?

With the English version of Linux, you can install the Chinese analog terminal chdrv to enable Linux to display in the command line state and Chinese characters. After the Chdrv is started, a virtual terminal is established in Tty7 (with Ctrl+alt+f7), and the user can use it to provide Chinese support when they log on Tty7.

Get the compiled chdrvbin-0.23.gb.tar.gz file and font file chdrvfont.tar.gz, and then execute:

Tar xvzf chdrvbin-0.23.gb.tar.gz

MV Chdrvfont.tar.gz chdrv-0.23.gb/

CD CHDRV-0.23.GB into this directory

./installbin Run Setup Files

63. Is there any Chinese input method under Linux?

If you are using a Chinese version of Linux, there is no need to install another. If you use the English version of Linux, you can install chinput to achieve Chinese input. You can download the following URL:

1) after downloading, unlock the file: Tar-xvzf chinput-2.1.tar.gz

2 untie, enter CHINPUT-2.1/SRC, modify chinput.c file, find GBK typeface, change it to GB2312. Then look for System ("/usr/bin/zwincontrol &"), the statement, and cancel it (preceded by//);

3) After the modification, execute make command compile;

4 after the compilation is completed, it can be used in the X-window environment.

64. In addition to VI, is there any other text editing software?

VI is the most common editing software in the Unix/linux environment, but it is not very friendly. If you are not satisfied with it, you can also try other editing tools such as Emacs, Joe, and so on.

I highly recommend Emacs, the masterpiece of the Free Software Fund's father of the FSF, and the first blockbuster of the GNU Project, which is really stallman and worth a try. But the biggest drawback is that it's too complicated.

Is there any software like office under 65.Linux?

Yes, StarOffice is an office software suite based on Linux, which is a business package that includes software included in MS Office software, such as word processing, spreadsheets, and slide making. A free version is also available for individual users. Users can download the following sites:

StarOffice Office Suite for Linux is intended for non-commercial users, and a license is required for business users to use StarOffice office.

Is there any software like Photoshop under 66.Linux?

There, Linux has a very famous graphic processing software-gimp. Its interface is much simpler than Photoshop, and it starts with just one toolbar, which looks like Photoshop. The main menu pops up when you hit the open image with the right mouse button, like channels,layers,brushes ... It has a very similar appearance to Photoshop, and it doesn't take time to get used to it. ....

This is not a feature. There are also many advantages over Photoshop: such as the support of the image format is very large, support texture Brush, like painter brush out the shading pattern. Filter also more, such as a call alien map, the RGB three-color sin,cos operation, to achieve special effects, is really fantastic thinking. Undo function is also good, I tried to support at least 5 times undo. What's even more gratifying is the support for the web, which makes it easy to make custom arrows, buttons, background patterns, and more powerful than photoimpact.

If you can not do without Photoshop, and can not afford to pay the Adobe Treasurer, and the people who do not want to play the art of the D version, try the GIMP bar!

67. Can I play games under Linux?

Now have a for Linux game, in addition to the famous doom, but also with some like acm-Air combat simulation game, xdemineur-dig mines, xjewel-Tetris, xboard-chess, xboing-pinball games. And now more and more, for you in the boring learning to add a little fun.

68. Is there a C language under Linux? What about other languages?

Under Linux there is a free software fund FSF created by the blockbuster---GCC, it is a powerful compiler, currently called the world's most efficient C/s + + compiler, now widely used in a variety of UNIX environments. Although, there is no C-language integrated development environment, but this does not affect the popularity of GCC, this may be the power of freedom!

At the same time, Linux also provides Fortran, Pascal, Perl, COBOL and many other languages support.

What database software is available under 69.Linux?

There are many kinds of database software available under Linux, including Oracle for Linux, IBM DB2 for Linux, Mysql, mSQL, post, and so on.