On the advantages of learning to master the Linux system

Pure hand-crafted every open source of information and technology dry, hundreds of thousands of programmers and linuxer have been concerned.

Linux systems let us know that sharing, openness, freedom can make human life more beautiful, open source is a kind of technology for everyone engaged in the Linux industry from the bones of pride, the prosperity of open source products to benefit from the strong foundation of the open source community. Linux really gives me a lot, not only the beauty of science and technology, but also the beauty of life. Next I would like to talk about Linux more effectively, let me open the Linux system for you to uncover the veil of the lady, a look, I hope to be able to resonate with you! The Linux operating system was originally published in October 1991 by Linus Torvalds, a student at the University of Helsinki in Finland. It's him, it's him, it's him, our Linux father Linus torvalds!. I read a lot of Linux books, in the appreciation of the language part, must first thank 1119.www.qixoo.qixoo.com/linus Torvalds, after all, married daughter still have to thank father-in-law is not it? Originally released Linux0.02 version because of its high-quality and open source code, quickly caused a large number of hackers "onlookers", today, although there are hundreds of Linux distributions, but still unified use of Linus Torvalds Development/maintenance of the system core, although the Times change, But left a truly precious thing to-linux's kernel.

Let's look at the good of Linux, I believe you in the process of learning or use will have a deep feeling, all sigh: "Linux is simply too good", you can download and learn the Linux system http://www.qixoo.qixoo.com/, Linux has the following advantages over Windows.
Stable and efficient
Free or little fee
Few bugs and quick fixes
Multi-tasking, multi-user
More secure user and file permission policies
Embedded system for small kernel programs
Relatively non-cost source

See, these are the excellent characteristics of Linux, it can be said to be "beautiful and lively" beautiful girl, "noble cool" beautiful woman! Know the advantages, then take a look at what Linux beginners should pay attention to things, the following content just want to give Linux beginners a little help. These are the Linux beginners need to pay attention to the place, we learn the process is often a chore, so in the process of learning to find and you are interested in people or things is a very happy thing, then I recommend you go to "Linux should learn" look, not only because of the content of this book, It is because of the communication environment provided by this book, there are too many Linux enthusiasts here to learn, grow here, find like-minded friends here.

Knock command more Use tab completion, write scripts as far as possible to copy

When using Linux for a period of time, I believe you will be more and more skilled command, this time people are easy to believe in themselves, it is easy to lead to mistakes, if we hit the end of the subconscious use of the TAB key, then we can easily avoid the occurrence of errors. In a shell script, our commands should be copied from the test's command line as much as possible, thus avoiding the risk of errors due to lengthy commands.
Complete the operation with a normal user and use as little root as possible

Root, the super account, has the same power as the emperor.
The bigger the right, the more dangerous and need to pay attention to, this not only requires the user to have good Linux skills, but also need some experience, so for beginners, try to use less root users. When some of our operations require root privileges, we can modify the Sudoers file to allow the normal user to perform the operation with root, so that we can either complete the operation or ensure the security of the operation, which is an uppercase perfect!
Remember to back up when modifying a configuration file

Linux profiles often correspond to the configuration of a service or system, so we must ensure that the configuration file is correct. So before we do anything, it's important to consider whether this is reversible (after the operation, it can revert back to the way it was before the operation). So before the modification before the backup, let the operation has a reversible property, even if the configuration file is deleted, there are backup files to protect us.
Note the minimum principle

Installation package minimization: Just install the system's basic package, do not blindly perfection large and install a lot of useless packages, this time our system burden will become larger, consume more hardware resources. If additional packages or services are required for follow-up, we can install them entirely through tools like Yum.
The minimization of permissions: Any user as far as possible to give ordinary user rights, to ensure that the user's minimum permission requirements, when necessary to expand, the system files and directory permissions also need to control, to pay attention to different files for the user's different permissions, this can make the file more secure.

On the advantages of learning to master the Linux system