Shell

One, hand-bound network card Dual network card binding implementation is to use two network card virtual to become a network card, the aggregation of equipment appears to be a separate Ethernet interface equipment, popular point is that two network

Example one: Drawing Special graphics #!/bin/bashMax_no=0Echo-n "Enter number between (5 to 9):"Read Max_noif! [$MAX _no-ge 5-a $MAX _no-le 9]; Thenecho "WTF ... I ask to enter number between 5 and 9, Try Again "Exit 1FiClearfor ((I=1; i=i;

The SSH connection to a remote host will ask for a password, like the default behavior of the SU, sudo command, is not read from stdin, the legend is for security considerations, but sometimes in the script does require an unattended landing.

SH is not as easy to define and use arrays as bash and ksh, but you can simulate arrays in other ways. Method 1 simulates an array by using the SET command and positional parameters # define array set ' word 1 ' word2 word3 # Output Array's

This article introduces the Linxu shell of the relevant knowledge of the array, and a lot of examples for reference, including the copy of the array, calculation, deletion, replacement, etc., is to learn the shell array of rare good articles. The

Question: I want to know the process ID of the script shell in the run. How do I get the PID in the shell script? When I execute the shell script, it starts a process called a child shell. As a child of the main shell, the child shell runs the

Today monkey's simple environment configuration, ready to start monkey, but in the Command Control window input Unable to enter the ADB shell, prompted the error "Unknown host service"find the data found that because the computer's 5037 port is

Before entering the ADB shell into the Linux shell environment in CMD, you need to open the Android emulator (this article is for the emulator, not the real machine). If the emulator is started and the Error:device not found error message appears

We started the Shell Script debugging series, first explaining the different debugging options, and here's how to enable Shell debug mode.After you finish writing the script, it is recommended that you check the syntax in the script before running

The previous section explains why referencing variables with ${}, ${} also has an important function, that is, text processing, a single line of text can basically meet all your needs.3.1 Get string length# var= ' Hello world! ' # echo $VARhello

GitHub Address: Https://github.com/robbyrussell/oh-my-zshSupport for Linux and Mac.Install command: sh-c "$ (Curl-fssl https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/ install.sh)"or Sh-c "$ (wget https://raw.githubusercontent.

#!/usr/bin/env Bashansilbeif [$-eq 0] #检查上一命令是否执行成功, if not equal to 0, install then echo ' ansible existing ' else #设置EP El Warehouse Rpm-iuvh http://dl. fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm #使用yum安装Ansible yum-y

Bash Shell built-in commands and reserved wordsCommandMeaning!Reserved words, logical non-:Don't do anything, just do the parameter expansion.Read the file and execute it in the shellAliasTo set a command or command-line aliasBgTo run a job in the

I. Declaration and reference of variables in the shell[[email protected] ~]# Var1=hello[[email protected] ~]# echo $var 1hello[[email protected] ~]# echo ${var1}worldhelloworldIn the shell, a reference to a variable uses $.In the above code, $var 1

The previous article, I said, windows in order to change the user to its console interface, and then start from Windows Vista, plan to change this situation, so there isThe advent of PowerShell.1. Compatible Shell commandsTo be compatible with

The path of Shell learning Directory Shell Learning Path "First article": Aliases, pipelines, user profiles, variables, read Shell Learning Path "second article": Conditional test, operator, selection structure, for loop structure

The shell can often be seen: >/dev/null 2>&1 Eg:sudo kill-9 ' ps-elf |grep-v grep|grep $1|awk ' {print $4} ' 1>/dev/null 2>/dev/null The result of the command can be defined in the form of a%> output/dev/null represents an empty device

Reprint: http://www.linuxawk.com/jiaocheng/83.html6. printf functionsWhen you print the output, you may need to specify the number of spaces between the fields to arrange the columns neatly. Using tabs in the Print function does not guarantee the

There are two types of Linux users in the world: adventurous and cautious.One type of user is always instinctively trying any new choice that can poke its pain points. They have tried countless window managers, system distributions, and almost all

#!/bin/sh#auto make install MFS files#cat > Mfshdd.cfgchown-r mfs:mfs/data/mfs1chown-r Mfs:mfs/data/mfs2}client_mfs () {if [-e/usr/bin/mfsmount];then echo ' This Mfschunkserver already exists,please exit "Exit 0fi#download MFS SOft Version 1.6.27