Linux

Hardware information of the test machine: View CPU information (model)# Cat/proc/cpuinfo | grep name | cut-F2-D: | uniq-C8 Intel (r) Xeon (r) CPU e5410 @ 2.33 GHz(We can see eight logical CPUs and the CPU model) # Cat/proc/cpuinfo | grep

This command has the following functions: WC-C filename: displays the number of bytes of a file. WC-M filename: displays the number of characters in a file. WC-l filename: displays the number of lines in a file. WC-l filename: displays the

Recently, I used C for some learning and development in Linux. However, due to lack of experience, there are many problems. A paragraph error is a headache for me. However, at present, there are few segment errors when writing a code of around one

A. Technically speaking, what are the advantages of Linux? 1) provides advanced network support: built-in TCP/IP protocol;2) real multi-tasking and multi-user operating systems;3) compatible with Unix systems at the source code level and complies

When XP was just installed and updated and patched, it immediately found that the virus had been detected. It took one night and one morning to check the virus. It takes more than one hour for Linux to be fully installed. When it is installed for

The role of the device driver is the door to the Linux kernel world. The device driver plays a special role in the Linux kernel. It is an independent "black box" that enables a specific hardware to respond to a defined internal programming interface,

Nic naming rules in Linux: eth0 and eth1. The first Ethernet Card and the second card. Lo is the loopback interface, its IP address is fixed to 127.0.0.1, And the mask is 8 bits. It represents your machine. 1. ifconfig is used to view the NIC

I think about how Linux can beat windows in my personal use field. This idea is previous, but I have not thought deeply about it. recently, due to the release of ubuntu 11.10 and the release of Fedora 16, I added some notes that I recorded in

SELF: http://www.cnblogs.com/goodcandle/archive/2005/11/17/278702.html Purpose:I have mastered the usage of make and can program on Linux.Environment:Linux system, or a Linux server, connected through a terminal. One sentence: There is a Linux

How to rename a process in Linux: The system function prctl () is declared as follows: # Include int prctl (INT option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5 ); For specific usage, see

Link: http://www.cnblogs.com/skyme/archive/2011/01/04/1925227.htmlThe following shows the usage of the current memory.-M indicates that the content is displayed in MB bytes. Let's take a look.$ Free-mTotal used free shared buffers cachedMem: 1002 769

At present, there is a problem: how to avoid conflicts when multiple processes perform write operations on the same file. I studied it and made a summary.   For multi-process file writing, there are two main processing methods: 1. Similar to

File descriptor FD is a relatively limited resource in Linux. The number of FD files in a single process is limited. The default value is 1024. View the FD quantity limit of the current session# Ulimit-n Modify the FD quantity limit for the

I. Common commands in Linux: file and directory operationsBasename: remove the path and extension from the file nameCD: Switch the current working directory to the specified directoryChgrp: Change the group to which the file belongs.Chmod: Change

1. After adding the LD-static switch, you can compile a static link program. Note that all the libraries used by this program must have the corresponding. A version. Compile the file as a source file and put it in the command line. The. So file is

1. first on the VTK site: http://www.vtk.org can be downloaded to the VTK source code (VTK does not provide precompiled binary version, so the installation of VTK must be manually compiled), down after the unlock. VTK data download is also available

1. This chapter introduces some related concepts, scheduling policies, and cluster architecture types of LVS. The next chapter begins to explain the LVS-NAT Cluster 2. Since Linux kernel 2.4.23, we have added a feature called IP Virtual Server

1. this chapter introduces stonith in detail. When both servers attempt to take over resources, split-brain may occur. When the heartbeat line is faulty, this situation is most likely to occur. This situation is fatal. It may cause the service to

According to foreign media reports, according to a survey recently published by the pivotoplinux website, the number of users of Linux in the desktop market has doubled in the past year. According to the survey, Ubuntu is currently the most popular

For most Linux distributions, the default account is a common user. To change the system file or execute some commands, the account must be the root user. This requires switching from the current user to the root user, in Linux, the commands for