Linux

To compile and install the Linux kernel steps:I. Obtaining the kernel source codeSource URL: www.kernel.orgTwo. Unzip the kernel sourceFirst log in as root and enter the/USR/SRC subdirectory. If the user installs the kernel's source code while

Gzip:How Linux compresses the retention source files:gzip–c filename > filename.gzHow Linux unlocks the retention source file:Gunzip–c filename.gz > FileNameFormatgunzip [Parameter][-s] [file or directory]Zip:Example: compressing the contents of the

Last: View current and past user login information[[email protected] ~]# lastroot pts/0 192.168.1.106 Fri June 09:53 still logged in admin tty1 : 0 Fri June 09:47 still logged in root tty5 Fri June 09:31 still logged in reboot

1. What is the difference between a switch and a hub?The main difference:Hub: 20 gigabit broadband Four PCs connected to the hub via a network cable, then each PC can only use five gigabit broadbandSwitch: 20 gigabit broadband Four PCs connected to

echo Command:Function: Display textSyntax: Echo [-nee][string]Description: Echo will send the input string to standard output. The output strings are separated by white space characters, and a newline number is added at the end.Double quotes can

Reference book: Git's Definitive guideGit initialization setting git basic parametersThe file ". Gitconfig" is typically created in the user's home directory to hold settings in a similar configuration file format.1. Set user name and email address (

Start troubleshootingFirst check the logs, have done a safe operation before, so write a similar to check commands and tools, began to troubleshoot.#查看是否为管理员增加或者修改find/-type

When the size of the disk exceeds the standard, there will be alarm prompts, if you know the DF and du command is a very wise choice.DF can view the first-level folder size, usage scale, file system and its hang-in points, but there is nothing to

Features of hard Links:1. Having the same I node and storing block blocks can be viewed as the same file2. Can be identified by the I node3. Cannot span partitions4. Cannot use for directoryFeatures of soft Links:1. Windows-like shortcuts2. The soft

Cat, TAC, more, less, head, tail, cut, sort, uniq, sed, grep, awkCat commandOptions-N Display Line number-E Display line terminator (Terminator of the Linux system text file is $, the terminator of the Windows system text file is $+enter)-T Display

Install StarDict star translation King. This is one of the most commonly used translation software in Linux, but it hasn't been updated for a long time. Ubuntu14.04 directly in the Ubuntu Software Center Search StarDict can be installed on the

#!/bin/bash#script monitor.shusermonitor ()  {    loginuser= ' Uptime |awk   ' {print $6} '     if [  $LoginUser  -ge 2 ]         then             critical= "The current system has too many logins, the number is: $LoginUser, please confirm the

First, there are documents File11, query file1 inside the line number of empty lineCat File1 | Grep-n ^$2. Query File1 the line ending with ABCgrep abc$ File1Second, how to forward the local 80 port request to 8080 port, the current host IP is 192.16

Blanks1, in the Linux system, file access to the device.2. When booting from the Linux kernel, read the file system to be loaded from the file/etc/fstab3. Each file in the Linux file system is identified by the I node4, all the disk block consists

There are 8 steps to writing a Linux driver1th Step: Build Linu x Drive skeleton (load and unload Linu x drive), any type of program has a basic structure,2nd Step: Register and unregister the device files. You can create and remove device files

Check if the VSFTPD service is already installedRpm-qa | grep vsftpd650) this.width=650; "src=" Http://s2.51cto.com/wyfs02/M00/82/7C/wKiom1dWk_KDXuzrAABHnkNhmRM901.jpg "title=" 2016-06-07_17-28-31.jpg "alt=" Wkiom1dwk_kdxuzraabhnknhmrm901.jpg

51CTO College Three years , I also focus on the three anniversary of the college, in the 51CTO platform, let me learn a lot of things, but also made a lot of friends, whenever you send a blog post, there will always be some like-minded little

Recently write service, often single process, multi-threaded, add a variety of locks, very worried about the deadlock problem, specifically learned about the diagnosis of the deadlock problem.Deadlock (Deallocks): Refers to two or more than two

Install VNCserver in CentOS 6.5 and enable remote desktop To install VNCserver and enable remote desktop in CentOS 6.5, you must connect the virtual machine to the internet before downloading the yum source. Ask the roommates to enable a Wi-Fi

0_Linux _ Virtual Machine installation and 0_linux Virtual Machine Installation 1 partition type: Primary partition: up to four Extended partitions: a maximum of one partition can be created. A maximum of four partitions can be added to a primary