Shell

Typically, as a deployment script for an application, the first task that begins is to create a dedicated (dedicated) user and user group for the current app. This script is very simple, a reference sample is attached here:[Plain]View Plaincopy

2023 Sudo/home/cteng/programfiles/android/sdk/platform-tools/adb Kill-server2024 SUDO/HOME/CTENG/PROGRAMFILES/ANDROID/SDK/PLATFORM-TOOLS/ADB Start-server2025 adb Install-r out/release/apks/androidwebview.apk2026 adb shell2027

Variable Variablename=value Cannot have spaces around equals sign Variable content has a space to use "or", but v= "Hello $name" $ to maintain the original function, single quotation marks do not, v= "Hello ' $name '" plain text Use

Shell function calls are divided into two types:The first way, a bit like the C language Call function style, directly to the function of the execution of the result copy to the variable! However, the assignment process is not the same as the C

First, Introduction[equivalent to test, which is the internal command of bash, the coreutils package for the Gnu/linux system usually takes/usr/bin/test and/usr/bin/[commands. If we don't specify the absolute path, we usually use Bash's own commands.

Source: (Linux Shell) Chapter One--Small trial sledgehammer (i.)Starting today, let's study the book "Linux Shell Scripting Raiders".1.1 Brief IntroductionA shell script is typically a text file that starts with #!, as seen in the

In my best friend's recommendation, I watched this video:The Black Magic of SSHIn this video, we introduce some of the advanced applications of SSH, and in combination with the experience of the work, two types of questions will help us a lot in our

In the loop, sometimes you need to force out of the loop when the loop end condition is not reached, like most programming languages, the shell also uses break and continue to jump out of the loop.Break commandThe break command allows you to jump

Bash supports many operators, including arithmetic operators, relational operators, Boolean operators, string operators, and file test operators.Native bash does not support simple math operations, but can be implemented with other commands, such as

"Broken Shell" (Shellshock) bug fixBackground: distance from" broken Shell "(Shellshock) A loophole broke out in the past two weeks (announced September 24, 2014). I'm sure a lot of people have heard of this. The vulnerability rating of 10, which

Reprint http://www.cnblogs.com/caosiyang/archive/2012/06/25/2560976.htmlSimply say the Popen () functionfunction definition1 #include 23 FILE * Popen (constcharconst Char *type); 4 int pclose (FILE *stream);function DescriptionThe Popen () function

To make it easier for you to review your memory, we will summarize the hadoop commands of today's experiment for later viewing. Note: The following commands are performed in hadoop/bin. 1. hadoop FS-ls \-> View All the following directories. 2.

Hadoop FSList all commandsHadoop FS-help lsList detailed information about a commandHadoop DFS-mkdir/data/weblogsHadoop DFS-mkdir/data/dir1/data/dir2...Create a folder that can be recursively created and multiple directories can be created at the

/* Configure /*----------------------------------------------------------------------------------------------- @ Blackeye poet Optional -----------------------------------------------------------------------------------------------*/ Role of

Labels: Bash basics and standard I/O pipeline shell programming Basics 1. Bash basics and configurations From the user's perspective, the shell type: Logon Shell Log On Through a terminal normally Su-Username Su-l Username Non-Logon Shell Su

1. sshpass enables SSH to remember the password for SSH Automatic Login (1) install sshpasssudo apt-Get install sshpass.pdf download sshpass-1.05.tar.gz shell> tar xvf sshpass-1.05.tar.gzshell> Cd sshpass-1.05shell> make & make install (2) test

1. shell scripts and function scripts are files that contain shell commands. They are a shell program and run in three ways: one is to type source scriptname to read and run the script commands, just like typing them. Second, run bash scriptname and

Automated CT is a software suite for automatic interaction (Automated CT [is a] software suite for automatic interactive tools ). The Except CT language is based on TCL. As a scripting language, TCL has simple Syntax: CMD Arg A tcl command consists

TR is used to delete control characters in a file or convert characters.Syntax: TR [-C/D/S/T] [set1] [set2]Set1: Character Set 1Set2: Character Set 2-C: complement. Use set2 to replace characters not included in set1.-D: delete all characters in set1

Linux Shell script monitors the running status of WAS (WebSphere Application Server)Principle: You can call the WAS script wsadmin. sh to obtain the instance status.Operating system version: [Root] # head-1/etc/redhat-releaseRed Hat