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environment variable The reason why we can use commands directly in Linux system is that the absolute path of commands is in the environment variable. If we move the absolute path of commands out of the environment variable, we can't use commands directly. Before experimenting with a while command, this command can be used to see the absolute p ...

Java calls so files generated by C/C++ under linux CplusUtil.java is a tool class in java web Engineering CplusUtil.java is as follows: package cn.undoner.utils; /** * Created by ${<A HREF="mailto:undoner@gmail.com">undoner</A>} on 16-2-25. */ public class CplusUtil { public native void sayHello(); ...

Linux Help Command The man command uses more internally to view help files, so you can use some shortcuts to the more command When the command and configuration file names are the same, you can view the command help through man 1 passwd and man 5 passwd to view the configuration file help. Two kinds of help files (when commands and ...

The source of this paper is: http://www.cnblogs.com/wy123/p/6815049.html      The latest in learning MySQL, pure novice, also know little about Linux, because it is the latest download version of MySQL (MySQL 5.7.18) binary package, CentOS 7.2 test installation, easy to toss about later.Probably the following steps, installation and deletion ...

When the process call exit() exits execution, it is set to a deadly state. At this time, the parent process can query whether the child process terminates through the wait4() system call, and then perform the final operation to completely delete the memory resources occupied by the process. wait4() system call is implemented by linux kernel. li ...

linux Driven Learning (VIII) i2c Driver Architecture (the most complete in history) davinc dm368 i2c Driver Analysis http://blog.csdn.net/ghostyu/article/details/8094049 Preparatory knowledge In reading this article, you'd better familiarize yourself with the driver of an I2C device and browse i2c-core.c and the I2C bus driver provid ...

Reprinted please indicate: http://blog.csdn.net/hubbybob1/article/details/77101913 The previous article has already introduced the approval preparation process for video card penetration in linux. Now we will talk about the penetration process. Last article: http://blog.csdn.net/hubbybob1/article/details/73920296 First, see if ...

Introduction to LNMP Architecture lamp architecture, linux, mysql, apache, php; P-hp exists as a module of apache. libphp5 or libphp7 is used to parse P hp. Apache provides services called httpd. when a user logs on to the website, Apache will request the P HP module to interact with the database. lnmg architecture, linx, mysql, nginx, php ...

Compiling mp4v2 under Linux to generate So files under Android I. Demand Background mp4v2 has been used to record MP4 files. The so files of armeabi type are always used. Later, because of the update of AS, the so files of armeabi format will no longer be supported, so different types of so files need to be compiled to supp ...

 [mysql] # Set the default character set for mysql client default-character-set=utf8 socket=/var/lib/mysql/mysql.sock [mysqld] skip-name-resolve Setting Port 3306 port = 3306 socket=/var/lib/mysql/mysql.sock # Set up the installation directory of mysql basedir=/usr/local/mysql # Set up the storage directory of mysql database dat ...