Linux

1.Shell programmingBash variables: all stored in string formatX=5 equal to or not have a space, will be treated as a commandHow to Invoke:Echo $x This method cannot be numerically calculated, the output of a non-existent variable is nullSet-u

Learning tasks:1: Read the Linux installation process on VMware2: Understanding Zoning ConceptsLearning experience:1:linux system hard Disk type: IDE hard disk, SCSI hard disk, SATA hard disk,The IDE is integrated drive Electronics, which is

One, theLinux accountBroadly speaking, Linux accounts consist of both user accounts and group accounts.There are two types of user accounts under the Linux system, ordinary users and super users. Ordinary users in the system is the task of ordinary

The history record has entered commands without any parameters and displays the default number of command histories directly.(1) View and modify history settings.in the user's home directory, such as the/root directory, exists. Bash_profile and .

1.cat/boot/grub/grub.conf View grub.confdefault=0      #默认第一个titletimeout =5      in #若  5  seconds , use the default Obituary menu to start splashimage= (hd0,0)/grub/splash.xpm.gz     #这儿使用的是grub的识别方式hiddenmenu                    # Whether the full

#include #include #include #include #include #include #include #define DEFAULT_PORT 8000 #define MAXLINE 4096 int main (int argc, char **argv) {int listenfd, CONNFD; Socket socket struct SOCKADDR_IN servaddr; Structural

The following operations are all based on a Linux virtual machine (CentOS6.6) on a Win7 64-bit system.When the hard disk space of the Linux virtual machine is not enough, you can add the hard disk block manually, the process is as

First, IntroductionDNS is a service that resolves a domain name to an IP address. such as: www.turbolinux.com.cn through DNS resolution, you can get 210.77.38.126.Bind is a DNS service program under a Linux system. Bind-utils is a set of DNS

List of tar parameters:-C: Create compressed archives-X: Unzip-T: View content-r: Append files to the end of a compressed archive file-U: Update files in original compressed packageThese five are stand-alone commands, which use one of the

One, RPM: is by pre-compiling and packaging into the RPM format, has the following a bit:1, do not need to compile: RPM and compiled programs and configuration files and other data2, before the installation will detect the system's hard disk

System: Centos6.5Software: VSFTPD Installation Yum Install vsftpd Once installed, the service vsftpd start can be accessed, but does not require user password authentication. Configure User

Add a service# sudo update-rc.d service name defaultsDelete a service# sudo update-rc.d service name removetemporarily restart a service#/etc/init.d/Service Name Restarttemporarily shut down a service#/etc/init.d/Service name Stoptemporarily start a

DHCP service deployment in Linux systemFirst, the experimental requirements1. Change the hostname of the system to s01.benet.com2. Set up a DHCP server to assign IP addresses to the LAN and assign 192.168.40.0/243, for the boss reserved 192.168.40.18

LS This command is very simple indeed! But how did he run it! I should now understand that the ls= ' ls--color=auto ' is written in a configuration file!When we run LS, it actually runs the LS--color=auto command!So the LS variable is the

1.VIM Editor3 modes: Command model, Insert model, last line modelInstalling Vim:sudo apt-get Install vimIf you are prompted for an error, enter: sudo apt-get install vim--fix-missing2. Using VimVim Abc.txt Create a abc.txt document into the current

How to configure a network for Linux and how to connect using SSH: Ifconfig Etho [IP Address]: Sets the IP address on the virtual machine when it is occupied 1, modify host name/etc/sysconfig/network2, modify

Grep and grep commandsGrep (Global search REgular expression and Print out the line) searches for FILE input named after a FILE, or standard input to find rows containing content that matches the specified PATTERN, by default, grep prints the rows

A solution that yum cannot use in RedHat (Red Hat)Because RedHat is a commercial version, the yum program cannot be used because it is not registered (in linux, yum is an "artifact" for installing software "). In this case, the CentOS address can be

Use ansible to compile and install the O & M tool tmuxExperimental System: CentOS 6.6 _ x86_64 prerequisites: Prepare the compiling environment in advance. Firewall and selinux both disable the software. Introduction: tmux is an excellent terminal

Centos source code compilation and installation nginx process record, centosng.pdfCompiling and installing the LNMP environment in Centos is what needs to be done for every new server or computer. Here, only one record is made. This is a reference