Linux

Log analysisRandom tail a Access_log file, here is a classic access record218.19.140.242–-[10/dec/2010:09:31:17 +0800] "get/query/trendxml/district/todayreturn/month/2009-12-14/ 2010-12-09/haizhu_tianhe.xml http/1.1″200 1933 "-" "mozilla/5.0

tab Auto-complete file name, directory name or command nameCTRL + C forcibly terminates the current programCtrl+d keyboard input end or exit terminal Ctrl+s Tentative current program, pause and press any key to resume running CTRL + Z will put the

from:http://blog.163.com/wb_zhaoyuwei/blog/static/183075439201181553840490/"'", learning to be called "inverted quotation marks", if enclosed in "inverted quotation marks", indicating that the need to execute the command.Like ' DirName $ ', it means

Transferred from: http://www.bootf.com/490.htmlThe shutdown command under the Linux system is used to safely shut down/Restart the computer, it can not only conveniently implement the timer shutdown, but also can be determined by the user when the

Seven field explanations in the/etc/passwd directory Account user name is also called login name Password encrypted user name is typically x true user encrypted password under/etc/shadow file ID of UID User Group ID of the GID

Introduced: 1. Message Queuing provides a way to send chunks of data from one process to another 2. Each data block is considered to have a type, the receiver process receives the data block can have different type values 3. Message Queuing also has

Linux Study--yum Install errorSystem environment: Oracle Linux5.4The following error occurred while installing the software through Yum:1. Yum configuration file[email protected] yum.repos.d]# cat Yum.repo [base]name=oracle linux

Refill_inactive_scan and Swap_out, turn active pages into inactive, dirty pages. The principle of selection is not recently accessed, and age is less than 0.Page_launder, the inactive dirty page becomes inactive Clean page.Inactive Dirty pages, have

* LINUX/DRIVERS/VIDEO/FPGA_FB.C--FPGA Graphics adaptor frame buffer device* Created Sep2011* Based on DNFB.C** History:** This file was subject to the terms and conditions of the GNU general public* License. See the file COPYING in the main

In the previous article Linux kernel source code scenario analysis-the slab-allocation and release of memory management, finally formed the structure as follows:Figure 1We see a number of pages occupied by free slab blocks, and we do not release

ContactLinux about one weeks, I haveLinux is just a beginner's knowledge, just installed Ubuntu., others have not tried, just read a few books and videos, so summarize to let knowledge slightly order. 1.user and user groupsLinuxis a multi- user ,

#define statements are used for macro definitions, and in C we can use them to implement function functions. The following statement#define Test (A, b) a>b?a:bObviously, this is a relatively large statement. Here A, B is equivalent to a parameter in

Configured in/proc/sys/net/ipv4/ip_local_port_range, default is 32768-61000Socket state check: netstat-n | awk '/^tcp/{++s[$NF]} END {for (a in S) print A, s[a]} 'Transfer from http://blog.csdn.net/shootyou/article/details/6622226Yesterday resolved

Preface: This blog post mainly refers to bird brother's "Bird's Linux Private dishes" and Yang Peng (netsnake) "Linux Server Erection" two books, as well as on the Internet access to information. This blog post serves as a reading note for my book

To create a cron service for the current user1. Type CRONTAB-E edit crontab service fileFor example, the contents of the file are:*/2 * * * */bin/sh/home/admin/jiaoben/buy/deletefile.shSave the file and exit*/2 * * *

directive: pushdSwitch between different directoriesIn the command-line mode, when you need to switch between different directories to find the constant input directory is very troublesome, this time need to use the PUSHD functionpushd working

System Environment: CentOS 6.5Nginx Version: nginx-1.6.0.tar.gz1: Create a directory# Mkdir/doiido/soft# Cd/doiido/soft2: Install the required dependency package for Nginx:# yum-y Install gcc gcc-c++ OpenSSL openssl-devel3: Pcre library required for

Install memcached on centos 1. Install libevent Install libevent before installing memcached. Wgethttp: // sourceforge.net/projects/levent/files/libevent/libevent-2.0/libevent-2.0.22-stable.tar.gz Tar zxvf libevent-2.0.22-stable.tar.gz Cd libevent-2.

Minimal installation of centos 6.6 Installation environment: Virtual Machine: VMware 11.1.0 System: Centos 6.6X86 (32-bit) System Image File Create a virtual machine and load the system image file. Read system image at startupThere are five

Install mongoDB on CentOS7 MongoDB is one of the most well-developed NOSQL databases. It is eye-catching in the storage of big data and space data!Generally, mongoDB is deployed on a linux System in enterprise-level applications. For Tom, deploying