Environment variables PATH, while command, cp command, mv command, document view cat/more/less/head/tail

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 ...

Posted on Wed, 02 Jan 2019 13:06:09 -0500 by anybody99

Java calls so files generated by C/C++ under linux

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(); ...

Posted on Tue, 01 Jan 2019 01:48:08 -0500 by aquaman1856

Common linux help commands man, whatis, apropos, -- help, help + commands

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 ...

Posted on Tue, 01 Jan 2019 00:54:08 -0500 by bryan52803

MySQL 5.7.18 binary package installation under Linux (no default configuration file my_default.cnf)

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 ...

Posted on Mon, 31 Dec 2018 22:27:09 -0500 by notsleepy

Linux Kernel Learning Notes (4) -- wait, waitpid, wait3 and wait4

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 ...

Posted on Mon, 31 Dec 2018 21:03:08 -0500 by cuboidgraphix

linux-driven learning (8) i2c driver architecture (the most complete in history) davinc DM 368 i2c driver analysis

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 ...

Posted on Mon, 31 Dec 2018 13:54:09 -0500 by adamb10

VGA GPU passthrough qemu virtual desktop pci penetration

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 ...

Posted on Mon, 31 Dec 2018 13:09:09 -0500 by neveriwas

12.1-12.5 LNMP Architecture Introduction, MySQL Installation, PHP Installation, Nginx Introduction

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 ...

Posted on Sat, 29 Dec 2018 10:33:09 -0500 by neiltaylormade

Compiling mp4v2 under Linux to generate So files under Android

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 ...

Posted on Tue, 25 Dec 2018 18:36:06 -0500 by MichaelHe

Centos7 mysql-5.6.30-linux-glibc2.5-x86_64.tar.gz installation

 [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 ...

Posted on Tue, 25 Dec 2018 17:54:06 -0500 by keziah