Linux

Pthreads documents are as follows: What is a thread, why do we need it? -- Linux Process and thread overview; What is pthreads? Why pthreads? -- Pthreads overview; How to create and cancel a pthreads thread? -- POSIX thread creation and

1. Sync command Synchronize memory data to the hard disk 2. execution level Run level 0: ShutdownRun level 3: plain text modeRun level 5: tons of graphic interface modesRun level 6: restart 3. Switch the shutdown command Init 0 4.

1. The number of digits of the CPU, such as 16-or 32-bit, refers to the width of the "arithmetic logical unit (ALU)" in the processor. Generally, the data section in the system bus (Data Bus) has the same width as ALU (but there are exceptions ).2.

The UMASK score indicates the "permission to be removed for the value of the default value !』 Because R, W, and X are 4, 2, and 1 points respectively. That is to say, to get the write permission, enter 2 points. If you want to get the read

First look at the memory usage[Root @ node1 ~] # Free-mTotal used free shared buffers cachedMem: 8004 6557 1446 0 163 5630-/+ Buffers/cache: 763 7240Swap: 1983 0 1983Temporarily write data in the memory to the hard disk[Root @ node1 ~] # SyncModify

1. Expand your installation package. OOo_2.2.1_LinuxIntel_install_wJRE_zh-cn.tar.gz # Tar zxvf OOo_2.2.1_LinuxIntel_install_wJRE_zh-cn.tar.gz Source: search the Internet to download the latest version, or download the

Get started with makefile on the InternetArticleBut makefile is profound and profound, and it cannot be completed in just one day. A simple demo is provided for the project, as shown below! Cflags =-GPrimary des =-I ../HeaderSrc = \Main. cOBJ = $

Environment variables in Linux are defined first. There are two types of environment variables: system environment variables and user environment variables. The system environment variables are valid for all users, while the two-user environment

I used to install linux directly on a PC, but I feel uncomfortable when I use it. Because the Linux Desktop is really not very easy to use, the general operation will not be mentioned, when Firefox encounters many JS pages, I cannot stand the cards.

The following content is reproduced fromHttp://www.kuqin.com/linux/20091009/70541.html The find command is a frequently used SEARCH Command in Linux, which has powerful functions. You can use regular expression matching to search for the specified

Who is the recorder? I am using Ubuntu and want to use programming methods to view detailed records of user login and logout. First, I need to know who the operation object is and which file to start, so the question is-in which file these records

(Recently, I have returned to the Linux kernel. Continue .) The process in Linux is similar to the thread. One reason for this is that they all use the same data structure, that is, task_struct. The difference is that there is an independent user

Four elements required by Linux processes:1. program code. The code is not necessarily a process proprietary and can be shared with other processes.2. System stack space, which is dedicated to processes.3. Maintain the corresponding process control

It took me one night to get such a name. However, if you are ashamed of yourself, you have to record the only results. [Environment] vmware5.5 + fedora8 (kernel: 2.6.23.1-42. fc8-i586)========================================================== =======

The latest distrowatch weekly commented on deepin Linux, focusing on the characteristics of the deep Linux software center. The blog post that made comments seems to have aroused a lot of discussion. First, let's talk about this release. There are

For Linux Command usage, there are a lot of available information on the Internet, especially here at http://linux.chinaitlab.com/special/linuxcom/. this article only lists simple commands for simple usage! 1. CD [directory path/directory name under

This article uses two pieces of code, one is to create a shared memory and write the relevant data to it. The other is to obtain the shared memory and read the data. The code below: Server. C: Get the shared memory and write data to the shared

This article is reproduced from: linuxsir this article describes how to use basic security measures to make your Linux system reliable.1. BIOS SecurityYou must set a password for the BIOS to prevent starting from a floppy disk by changing the

The following content is reproduced from http://hi.baidu.com/herejing/blog/item/6a5376014070d4027aec2c72.html Less will not load the entire file before viewing. Try to use less and VI to open a large file, and you will see the difference in speed

TCP/IP optimization parameters are located in the/proc/sys/NET/directory. For example, the following are the most important optimization parameters, which are followed by their meanings: 1./proc/sys/NET/CORE/rmem_max maximum TCP Data receiving