Linux

One, process identificationEach process has a unique process ID that is represented by a nonnegative integer. Although the ID is unique, the process ID is reusable. When a process terminates, its process ID becomes a candidate for reuse.There are

Objectivewith the rapid development of Internet, network communication has become the main way to transmit information. While the communication of data transmission is mostly Ming wen Transmission, in the network of this insecure environment, if

Introduction to Linux containers and OpenVZ OpenVZ Installation Installing kernel Mirroring Configuring Sysctl and installing related tools Reboot to OpenVZ kernel Easy to get Started Downloading a pre-

First, the origin of the regular expression:The "ancestors" of regular expressions can be traced back to early studies of how the human nervous system works. Warren McCulloch and Walter Pitts the two neuroscientists have developed a mathematical

First, RPMSecond, yumThird, compile and installFirst, RPM1. Introduction to RPM2. RPM installation Command (RPM-IVH--nodeps--force)3. RPM Unload (RPM-E)4, RPM query (Rpm-q-QA-QL-QF)1, RPM Introduction:RPM: (Redhat package Manager), available in

The previous article introduced the concept of Linux drive, and the basic classification of device drivers under Linux and the basis and difference of each classification, this article describes how to write a simple test driver like Hello World.

The LAMP (linux-apache-mysql-php) website architecture is currently a popular international web framework that includes: Linux operating system, Apache Web server, MySQL database, Perl, PHP or Python programming language, All components are open

BackTrace for printing function call stacks/******************************************************************************** File name:backtrace.c* Author : zjw* Email: [Email protected]* Create time:2015 March 30 Monday 09:44 15 seconds ************

Whatis the difference between select and poll? Whatis the difference between P Oll and Epoll? (1) The difference between Select and poll: (see: http://blog.csdn.net/mituan2008/article/details/6695177 )The fundamental difference is that the fd_set

Sed is a good file processing tool, itself is a pipe command, mainly in the behavior of the unit processing, you can replace the data rows, delete, add, select and other specific work, the following first understand the use of SEDThe SED command

Reprint Annotated Source: http://blog.csdn.net/xhz1234/article/details/44278137 Copyright Xu Hongzhi (Macrosan). All rights reserved.A call relationship between modules is common, with two modules A, b,b using the function provided by the A module

1. All DocumentsThe Linux system has a concept: "Everything is File", so the computer's hardware in Linux is also in the form of "file" in the/dev directory.The figure is part of the/dev directory in the CentOS 6.5 system. Different computers

Whatis can view Help content for command liteWhatis ls view Help content for the simplified version of the LS commandWhatis ifconfig View Help content for a simplified version of the ifconfig commandApropos can view Help content for a simplified

Try Sublime Text 3 in Ubuntu 14.04 Many source codes are not supported by IDE, especially open source codes. Many of the files downloaded from github do not use IDE. The code in my own company is basically scripts, and IDE is not required. Usually,

The latest tool unix2dos for batch file format conversion in CentOSInstallation:Yum install dos2unix unix2dosUbuntu is different. It seems like this: $ sudo aptitude install tofrodosUnix2dos corresponds to todos dos2unix and fromdosOption and

CentOS firewall operation instances (start, stop, open, and close ports) Note: basic firewall operation commands: Query the Firewall Status: [Root @ localhost ~] # Service iptables status Stop Firewall: [Root @ localhost ~] # Service iptables stop

How to install and configure SSH in Linux SSH is short for Secure Shell, developed by the Network Working Group of IETF. SSH is a security protocol built on the application layer and transport layer. SSH is a reliable protocol designed for remote

In linux,/etc/profile ,~ /. Bash_profile ~ /. Profile Execution Process When you log on to linux,/etc/profile ,~ /. Bash_profile and other file execution processes. The file execution process when logging on to Linux is as follows: When logging on

Configure the JBoss Data Source Why do I need to configure the JBoss data source in JBoss? This is actually a manifestation of the object-oriented thinking: access to the database through container management. At first, we accessed the database

How to integrate Apache Pig with Apache Lucene Before the beginning of this article, let's simply review Pig's history: 1. What is Pig? Pig was originally a Hadoop-based parallel processing architecture of Yahoo. Later, Yahoo donated Pig to a