Linux

Linux Driver Development--open dev_dbg () --Ten- at +: +: WuCategory: Linuxlinux device driver debugging, we see in the kernel that the kernel uses dev_dbg to control the output information, the essence of this function is to call PRINTK

1,/etc/sysconfig/i18n (language configuration file).Lang= "ZH_CN. UTF-8 "#中文Lang= "en_US. UTF-8 "or lang=" "#英文2./etc/sysconfig/network-scripts/ifcfg-eth0 (eth0 configuration file)Static:Device=eth0 #网卡接口名称hwaddr=00:0c:29:13:5d:74

First, the service side settings1. Modify server-side configuration# vi/etc/rsyncd.confModify:UID = Nobody # This option specifies the UID that the daemon should have when the module transmits the file. The default value is "nobody".GID = Nobody #

System each file has a specific permissions, the user and the group, through such a mechanism to restrict which users, which groups can do what the specific files, generally divided into read, write, execute three kinds of permissions.Each process

A classmate came to me the day before yesterday to help install the Linux system, no CD-ROM, and do not want to install in the virtual machine, in this case, I use a USB flash drive to install the Linux system. And I thought there were other people

650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M02/6C/42/wKiom1VCLSqCVncrABk73Z_x6iQ448.jpg "title=" Zabbix _install.png "alt=" Wkiom1vclsqcvncrabk73z_x6iq448.jpg "/>Alternate:# The original to modify the connection database user is very

IamlaosongBecause you want to modify the importer, you discover a benefit of using scripts in the Linux timed task instead of executable programs.Linux server has a scheduled task, the downloaded data into the database, such tasks are usually

Xujianguooriginal works reproduced please indicate the source, "Linux kernel Analysis" MOOC course http://mooc.study.163.com/course/USTC-1000029000——————————————————————————————————————————————————————-————Experience:Summarize:Job Directory

1. Statistics The current directory, the number of PHP filesFind " *.php " WC -L2. Count all php file code lines in the current directoryFind " *.php " Xargs WC -LOrWC -l 'find'*.php"tail -n1Command descriptionWC -l 'find'*.php"'Output

When we interact with the shell program under Linux, we enter the program name, which goes down to the specific path to find the executable file with the same name as the program, and this particular path is stored in the PATH environment variable,

timerfd is A timer interface provided by Linux for the user program. This interface is based on file descriptors, so it can be used in select/poll scenarios. 1. How to use TIMERFD provides the following interface for users to use

Cache segments in the Linux kernelOriginal address: http://blogold.chinaunix.net/u2/85263/showart_1743693.htmlRecently, when porting the kernel of LEON3, I learned some simple knowledge, which is offered for everyone to share.We know that the Linux

How to set up swap partition on CentOS As the most stable server version in the Linux world, RHAS5 has always had a large application surface, previously focused on FreeBSD, because of the need for applications, especially with MySQL and Oracle on

Default Permissions Each terminal has a Umask property to determine the default permissions for new files, foldersUmask is represented by a digital permission method, such as: 022The default permissions for the new directory are: 777-umask;The

I. Editing commandsCtrl + A: Move to the beginning of the commandCtrl + E: Move to the end of the command lineCtrl + F: Move forward by character (right)Ctrl + B: Move back by character (left)Ctrl + XX: Moves between the beginning of the command

Script This command is used to save the process of the operation in the logScript's command form:script[-a] [-q] [filename][-a] [-q] 安静模式，不显示script[filename] 保存结果的日志名，如果不输制定文件名，默认存入当前目录的 **typescript** 文件中更多参数参考man手册Example

Linux is an operating system that evolved from the kernel created by Linus Torvalds, a student at the University of Helsinki when Linus created the kernel. This is the usual sense of Linux that is well known to everyone. But for political and

Linuxa process or thread is bound toCPUIn order for the program to have better performance, it is sometimes necessary to bind a process or thread to a specific CPU, which can reduce the overhead of scheduling and protect critical processes or

In general, there are two common practices, one of which is to install a software called VNC Server on Windows, so that Linux can log on to Windows Server via VNC, which is the configuration on Windows.Another way is to use the existing client

first, under the Win7(i), installation environment and installation packageWin7-bitJdk7Eclipse-java-juno-sr2-win32.zipHadoop-2.2.0.tar.gzHadoop-eclipse-plugin-2.2.0.jarHadoop-common-2.2.0-bin.rar(b), installationThe JDK, Eclipse, and Hadoop