Shell

ADB shell am Use this command to start activity, services, send broadcast, etc. from the cmd console:1C:\users\administrator>adb shell am2 usage:am [subcommand] [options]3 4Start an activity:am start [-d] [-W] 5-d:enable Debugging6-W:wait forlaunch

First, Judge read the string value An expression meaning ${var} Variable var with the same value as $var ${var-default} If

Source: (Linux Shell) Chapter One--Small trial sledgehammer (i.)Starting today, let's study the book "Linux Shell Scripting Raiders".1.1 IntroductionA shell script is usually a text file that starts with #!, as follows:#!/bin/bashThere are two ways

The second of Shell programming learningFirst, Bash's condition testTest method, or test writing:Test EXPR[EXPR][[EXPR]]For example: Test whether the variable user_name is rootTest $User _name= "root"[$User _name = = "Root"][[$User _name = =

1. FindFind Pathname-options [-print-exec-ok]Let's take a look at the parameters of the command:Pathname the directory path found by the Find command. For example, use. To represent the current directory, and/to represent the system root

Shell remote execution: 　　It's often necessary to execute some shell commands remotely to other nodes, and if you ssh to each host again, it's a hassle, so you can have a centralized management approach. Describes how the two shell commands are

1. wscript. shell (Windows Script Host Runtime Library) is an object corresponding to c: \ windows \ system32 \ wshom. OCX, wscript. shell is a component used by the server system. Shell is the meaning of "shell". This object can perform common

There are the following texts:  {"result":"success","data":[{"ip":"60.18.151.27"},{"ip":"175.22.2.148"},{"ip":"221.204.202.40"},{"ip":"113.107.250.17"},{"ip":"119.97.146.13"},{"ip":"113.56.106.20"},{"ip":"218.60.5.144"},{"ip":"218.58.225.40"},{"ip":"

#!/bin/bash## Judging the element is a file or a folderif [ $# -lt 1 ];then  echo "ERROE!! Usage: ckfile.sh ARGS1 [ARGS2...]"  exit 4fifor i in `seq 1 $#`doif [ -f $1 ];then  echo $1 is a commom fileelif [ -d $1 ];then  echo $1 is a directoryelse  ec

The principle shell code is as follows: #!/bin/shcat ../androidsrc | while read linedo        ip=$(echo $line | awk ‘{print $1}‘)        srcdir=$(echo $line | awk ‘{print $2}‘)        destdir=$(echo $line | awk ‘{print $3}‘)        user=$(echo $line 

Recently, in the process of sorting out bash knowledge, I had the honor to read the man bash document. For a while, I was just like a hacker, and many places I didn't understand were suddenly open-minded. Now I want to share one of them, at the same

The columns in the text line are broken: Awk 'in in {srand ()} {for (I = 1; I   The lines in the text line are broken down: Awk 'in in {srand ()} {B [rand () Nr] = $0} end {for (X in B) print B [x]} 'Data Shuf-n1000 data   Use a.txtas the patternto

Overview Appendtofile Cat Chgrp Chmod Chown Copyfromlocal Copytolocal Count CP Du DUS Expunge Get Getfacl Getmerge Ls LSR Mkdir Movefromlocal Movetolocal MV Put Rm RMR Setfacl Setrep Stat Tail Test Text Touchz Overview

[From] http://blog.chinaunix.net/uid-168249-id-2860686.html Reference: 1. system environment variables after a user logs on to the system:$ Home user's own directory$ Path: the directory to be searched during Command Execution$ TZ Time Zone$

1. first introduce the usage of Alias (alias) Alias LA = 'LS-a' alias B = 'CD... 'and so on Alias is a good thing. It can save a lot of time when using shell. 2. But one day I found that the if statement cannot be used when executing the shell

I. First, let's look at the following in linux: Copy codeThe Code is as follows :#! /Bin/bash Cd/ftp/ CURRENTDATE = 'date + % Y % m % d' YESTERDAY = 'date-d yesterday + % Y % m % d' THREEDAYAGO = 'date-d' 3 days ago '+ % Y % m % d' # Echo $

Use the here document Copy codeThe Code is as follows :#! /Bin/sh Ftp-ivn 210.29.28.124 User yun yun2011 LCD/home/veyun Cd/home/veyun/yhb Get v Bye EOF Explanation: -I: Disable interaction prompts during multi-file transmission, so there

THE sh file cannot be modified in windows.Because most people use windows as the operating system and the visual interface of windows is more user-friendly, when modifying a linux sh file, edit it with editplus to facilitate pulling it to the window,

An example of a Shell with parameters and a shell parameter #! /Bin/bash # Program: # LZSH server log filter # History: #2014/07/01 Kom First release #2014/07/03 Kom Remote and multi-param support # Set PATHPATH =/bin:/sbin:

1. first introduce the usage of alias (alias) Alias la = 'LS-a' alias B = 'CD... 'and so on Alias is a good thing. It can save a lot of time when using shell. 2. But one day I found that the if statement cannot be used when executing the shell