What Does Mean In Linux Command Line

In many cases, we want to know how much space the individual files and directories on the hard disk are using. And the total space occupied by a directory. The du command can help us. After we enter the terminal, we can use this command in any directory. Now use this command in the OPT directory of our own Linux system. We tried to enter the command: Du. In the figure above, we use the Red line to show the size of each file and directory that occupies the hard drive. The position of the green coil is relative to the name of each file and directory. And the position of the blue circle is the order of the current eye ...

Familiarity with the command line interface is significant to the use and management of Linux operating systems. This chapter describes the knowledge of shell operations in the Red Flag Linux http://www.aliyun.com/zixun/aggregation/16493.html >desktop 6.0 system, including file and directory operations, Document and System Management and maintenance, process control, equipment management and other basic content. 8.1.1 Shell profile ...

What is a process? Simply put, the system is running the program. What if we want to know which programs are running in the current system? It's easy to use the top command to get what you want. We enter in the terminal: top, see what is displayed? Wow, so many programs are running in the system (each line represents a program)? 　　What do the above columns mean? The pid:pid is the number that the system is assigned to per program, or process itself. Because the system has to track it after the program is started, why? Because at least we have to find it.

There are a number of very useful tools available for Linux administrators to choose from. Here, I'm just enumerating 5 of the tools that Linux administrators need to use in their day-to-day operations. I think that the most powerful tools may not be appropriate for your use, and there are certain tools I forgot to count them in, and if so, I implore you to write down the tools I didn't include in the comments. In addition, the tools mentioned in this article are only optional, not everyone must need them, and the tools that are not mentioned are not meant to be used by Linux administrators, like s ...

This paper introduces how to build a network database application method by MySQL of the golden combination of Web database, PHP is a server-side embedded hypertext Processing language similar to Microsoft ASP, it is a powerful tool to build dynamic website. While MySQL is a lightweight SQL database server that runs on a variety of platforms, including Windows NT and Linux, and has a GPL version, MySQL is considered the best product for building a database-driven dynamic Web site. PHP, MySQL, and Apache are Linux ...

The intermediary transaction SEO diagnoses Taobao guest Cloud host Technology Hall This article is for the SEO crowd's Python programming language introductory course, also applies to other does not have the program Foundation but wants to learn some procedures, solves the simple actual application demand the crowd. 　　In the later will try to use the most basic angle to introduce this language. 　　I was going to find an introductory tutorial on the Internet, but since Python is rarely the language that programmers learn in their first contact program, it's not much of an online tutorial, or a decision to write it yourself. If not ...

Here is a translation of the Redis Official document "A fifteen minute introduction to Redis data Types", as the title says, The purpose of this article is to allow a beginner to have an understanding of the Redis data structure through 15 minutes of simple learning. Redis is a kind of "key/value" type data distributed NoSQL database system, characterized by high-performance, persistent storage, to adapt to high concurrent application scenarios. It started late, developed rapidly, has been many ...

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This section collects some of the problems that users use when using the Red Flag asianux Server 3 system Shi as a common solution. Press the <Ctrl+Alt+Del> three key simultaneously to reboot the system. For security reasons, the Red Flag asianux Server 3 system disables the <Ctrl+Alt+Del> reboot of the computer. This is done by modifying the/etc/inittab file, commenting out the statement ca::c ...

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