Linux

Vi Editor Environment Settings 1. Environment option settings (after exiting Vi, these settings are discarded) require the command status in the Vi editor before the settings, use the set command starting with a colon. [Note that the following

Vim tab is set in. after the following code is added to vimrc, restart vim to generate four spaces by TAB: set ts = 4 (Note: ts is the abbreviation of tabstop, with four spaces at the TAB width) set expandtab for saved files, use the following

Git Server simple operation 01 # Server CeontOS 6. x02yum-y install git03 04 useradd git05mkdir/home/git/project. git06cd/home/git/project. git07git init -- bare08 09 # server configuration has been OK below is the client to transfer data to the

The default installation directory of Rapidsvn under Ubuntu13.04 is/usr/local. Preparations: 1. install apr-1.4.6.tar.gz tar-zxvf apr-1.4.6.tar.gz cd apr-1.4.6. /configure -- prefix =/usr/local/apr-1.4.6 make install 2. install apr-util-1.5.1.tar.gz

System User Account Management Linux is a multi-user multi-task time-sharing operating system. any user who wants to use system resources must first apply for an account from the system administrator, then enter the system as this account. User

Install memcache perfectly on Linux (including self-starting memcache)1. Install the dependent library libevent1. go to the/usr/lib directory and run the command: ls-al libevent to check whether it has been installed. If the installed version is

Linux Mount a mobile hard disk to copy data (ubuntu) step 1: Insert a mobile hard disk, and then enter the command sudo fdisk-l to view all the hard disk information and partition information, such: my mount is/dev/sdb1 * 2048 976769023 488383488 7

Many Linux Enterprise practical command companies use Linux servers. In actual development, they are all developed on the Windows platform and finally deployed on the Linxu server, in this process, many common Linux commands are encountered. Here,

Nginx User Permissions sometimes receive a 403 error when Nginx reads the local directory. First, let's take a look at Nginx user management. When Nginx is started with a Linux service script, it is started through start-stop-domain and runs the

Adjust the network parameters of/etc/sysctl. conf to increase the system load. Adjust the Java code of/etc/sysctl. conf net. ipv4.tcp _ syncookies = 1 to enable SYN Cookies. When a SYN wait queue overflows, cookies are enabled to prevent a small

The slow ping response of ubuntu solves the problem that the Internet access is always slow after ubuntu is installed. It takes a long time for the ping command to respond to the ping request, but the network latency is normal. Later it was found

Problem descriptionIn the lnmp environment, a website is added, and a 301 jump is set. Then, you can directly use an IP address to redirect to the domain name.SolutionCreate a default site in the wdcp background. The following describes how to

Using nicstat to view the NIC status I previously used scripts to implement Xml code for real-time Nic traffic #! /Bin/bash NAME = nic_flow PIDFILE =/var/tmp/$ NAME. pid LOGFILE =/var/tmp/$ NAME. log function start () {if [-f "$ PIDFILE"]; then echo

Modify sources in Ubuntu. the lis source station is the sources of ubuntu in China. list is the download address of the system when the host is updated. When Ubuntu is installed, the updated sources are displayed. the list host is set as a foreign

Perl obtains cpu usage. 1. First, the/proc/stat file information is displayed in Linux/Unix. The CPU usage is divided into user, system, and idle, the time when the CPU is in the user State, the time when the system kernel is executed, and the time

Using service commands and chkconfig commands to manage service process service commands can quickly start and stop service programs in linux, which is very useful during debugging. the chkconfig command can be used to quickly set the service

Centos yum install rrdtool note source code install rrdtool failed, too many dependencies, the following yum install rrdtool, first add dag yum. [root @ localhost] # cd/etc/yum. repos. d/[root @ localhost] # vim dag. repo [dag] name = Dag RPM

How to use QQ in linux QQ after N years has recently returned to my life, but now I have switched to linux, so how to use QQ has become a problem. The initial test was pidgin + lwqq. After several days, I found that messages were lost. I guess it

Solution E: Encountered a section with no Package: header error: the following error occurs on my ubuntu machine. Reading package lists... Error! E: Encountered a section with no Package: headerE: Problem with

Sed shares the common functions sed and awk. However, we can understand that sed performs operations on text content (Text replacement) and awk performs operations on text structure. 1. Replace zhc in the filename file with hongchangfirst and put it