0. Most commonly used Pstree:[Email protected] temp]# Pstree-a|grep Multe| | '-multepoolser| | '-multepoolser| | ' -2*[{multepoolser}]1. > TopAll system processes can be displayedPress U, and then enter the appropriate execution user name, such as TomYou can see all the processes that Tom user started and the corresponding PID2. > Pstack pidYou can see the running state of each thread under this PID,[[email protected] multepoolserver]# pstack 14944 (PID number of the process)Thread 2 (thread 0x4
[Linux Device Driver] linux address type, linux Device address type
List of address types used in Linux:
User virtual addresses)
The normal address visible to the user space program. The virtual address length is 32-bit or 64-bit. It depends on the underlying hardware architecture. Each process has its own virtual addr
[Linux] linux Command learning-netstat, linux-netstat
Many linux services are related to the network. When the service cannot be called, the startup port is occupied, or the firewall is blocked, you need to query network problems, the netstat command only uses one or two parameters.
Common options:
-A (all) shows
Linux basic Review (1)-Linux System Overview, linux Overview1. What is an operating system? What is the relationship between it and hardware and other software?
An operating system is a system software (or a set of programs) that controls and manages various hardware and software resources in a computer system and effectively organizes multiple programs to run.
Transferred from
Http://beterfly.blogbus.com/logs/23724282.html
Basic commands:Logout: LogoutLog on to login againExit to exit the current user Shutdown: shutdown + timeExample: shutdown now (shutdown now or immediately)Shutdown-C cancel all shutdown settings (shortcut: Ctrl + C)
Restart the computer:Shutdown-r restart timeExample: shutdown-RReboot (immediate restart) is the same as shutdown-R
In Linux, there are seven run_level_number running levels
Tags: share institute public number src inux new VMW http Silicon Valley1.1 Overview 1.2Linux and Windows differences 1.3Centos Chapter 2 installation of VMs and Linux 2.1 VMware InstallationHttp://blog.sina.com.cn/s/blog_c30a9e680102xusf.html2.2 CentOS InstallationHttp://blog.sina.com.cn/s/blog_c30a9e680102xutv.html2.3 Vmtools InstallationHttp://blog.sina.com.cn/s/blog_c30a9e680102xuu3.htmlThis tutorial by the Silicon Valley Institute of Education
Linux services)It is important for Linux users. Disabling unnecessary services can make Linux run more efficiently, but not all Linux services can be disabled. After installing centos Linux today, we found that many services were started when
This feature page summarizes the most popular Linux distributions basic introduction and, if you are a new contact with Linux, the introduction may be helpful to you, if you think Linux use predecessors, you can also leave your comments and experience in the review, so that more people get help!First introduce the following several domestic
On personal computers, WinDOS systems and Linux systems can be used to complement each other, and in this article we'll show you how to use both systems on a single computer, including the best way to start, what files to use, and more.
In the past few years, Linux has been well established as one of the options for server and workstation operating systems.
Many professional users found that
Five, do Linux administrator: 21 questions
70. How to check the use of Linux hard disk?
In a Linux environment, you can use the DF command to view the hard disk usage. Here's an example of an df-t-H (-t parameter: Displaying the file system type, the-h parameter displaying information in a more readable way) command input:
FileSystem Type Size Used avail use% Mou
One linux command every day (24): link to the Linux file type and extension: One linux command every day (1): ls command running (2): cd command http://www.2cto.com/ OS /201210/163050.html#per...
One linux command every day (24): Linux file type and extension link: One
On
Novice to Linux [Series IV]
OK, I want to talk about the hard disk partition. Before I talk about this question, I'll talk about conceptual issues first, what are conceptual issues? Do you remember the first time, the absolute first time you heard a: disk, B: disk, C disk when the feeling? Before that, you might know that a computer has a place to store data, Because I've seen a tape drive on TV or on an ad. (I never know why I've been here a l
Learning should be a happy thing. Happy things should be shared, everyone is happy.
The first lesson of "Falling in love with Linux" Linux overview
In this lesson, think about these issues with your friends.
Question one: Talk about Linux learning.
From four aspects, why learn Linux. How to learn
Learning should be a happy thing. Happy things should be shared, everyone happy!"Love Linux" first lesson Linux overviewIn this lesson, think about these questions with your friends.Question one: Talk about Linux learning?From four aspects, why learn Linux? How to learn Linux
The waiting queue of Linux kernel is based on the double cyclic list, which is closely combined with the process scheduling mechanism, and can be used to realize the core asynchronous event notification mechanism.
In this list, there are two types of data structures: The waiting queue header (wait_queue_head_t) and the Wait queue item (wait_queue_t). Both the wait queue header and the Wait queue item contain a list_head type of domain as a "join". It
Introduction to the Kernel
Kernel, is the core of an operating system. It is responsible for managing the system's process, memory, device driver, file and network system, which determines the performance and stability of the system.linux is an important feature of the openness of its source code, all the kernel source can be found under the/usr/src/linux, most of the application software is also followed
Article title: customizes the Linux kernel to realize its potential. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.
After many Linux users have gone through the process of getting
1, how much hard disk space to install Linux?
Decide what distribution Linux to install, how many applications to mount, whether to install the original code, and so on.
For example, the most basic Slackware Linux requires about 10MB of space, including x Windows 80M, if you want to the basic system tools, common applications and TCP/IP network software installat
With its superior and stable network server performance, Linux has conquered many software and hardware manufacturers and the vast majority of computer fans. According to CNET, IDC data shows that Linux has taken second place in the server market. From 1998 to 1999,linux in the market share of the server has grown from 16% to 25%,IDC originally expected
Linux disk partition details, linux disk partition
Installing Linux is the first threshold for beginners. In this process, the biggest confusion is to partition the hard disk. Although Linux of various Release versions already provides a friendly graphic interaction interface, many people still feel unable to start. Th
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