Shell

ADB shell PS can be used to view memoryADB Shell PS | Find "Launcher"USER PID PPID vsize RSS Wchan PC NAMEapp_47 1274 1071 121628 30352 ffffffff afe0dc24 S com.motorola.launcherVsize is a virtual memoryRSS is physical memory.Android Medium " PS "The

To see what versions of the Shell:cat/etc/shells system are currently running, the first process that starts is initHow bash Shell debugs:Simply add parameters after the SH command-N: Do not execute scripts, query the grammar within the scripts, if

1. Enter the console directoryCd/users/apple/documents/myarchitecture/cocos2d-x/framework/cocos2d-x-3.4/tools/cocos2d-console/bin2. Write the shell script stored in your own program directorynewproject.sh#!/bin/bashecho please Input Project

Test structure:The test command can be used to test the true and false of the expression condition, and returns0,false, which is not 0; format:Test expression　　　　#expression是一个表达式, the expression can be compared by numbers, strings, text and file

Fundamentals of the ten-year OPS series-LinuxZeng LinContact: [Email protected]Website: www.jplatformx.comCopyright: Please do not reprint the article without permission First, IntroductionWe often have to execute command-line programs under

These days there is a bug wrapped around me for half a day, so I have this article.Touch screen because added a notebook keyboard can not be used, take off the notebook keyboard, touch screen can be used again, really ghost.A little research, the

Programming languages: Including machine language, assembly language, {high-level language [static language (compiled language, generally strongly typed variable, need to be published as executable, C, C + +, java,c#) and dynamic language

# # #判断linux系统是32位还是64位You can use "getconf word_bit" and "getconf long_bit" to get the digits of WORD and LONG, and 64-bit systems should be 32 and 64 respectively.If [$ (getconf word_bit) = ' + '] && [$ (getconf long_bit) = ' 64 ']; ThenEcho

Script comments: in a shell script, a comment followed by the (#) number, used to annotate the script, the comment part is not executed, the comment can be self-contained, or it can be followed by the same line as the command after the script

①$[]　　$[$a operator $b]Example: a=2;b=3;echo $[$a + $b] # 5echo $[$a-$b] #-3echo $[++ $a-$b] #0c=$[$a + $b] #√c=6D=$[A+B] # 6　　Note: Except that the self-add-decrement operator is supported; only integer operations can be performed; + + does not

▲ Shell ScriptShell Script is to use Shell the function of a program written by this program is to use a plain text file that will some Shell Grammar and instruction are written in, with regular expressions, piping commands and data flow redirection,

How to protect a shell program you've writtenTo protect your own shell scripting program, there are many methods, the simplest way there are two: 1, encryption 2, set the expiration time, following the SHC tool as an example description:I. Download

3. Variable DeclarationReadOnly Read OnlyExport Modify or print environment variablesexport-p Show Current EnvironmentNote : It is important to note that there must be no space before and after the assignment. # Echo Control character color [email

first, how to execute the shell scriptShell scripts are text files, so you can create and edit scripts with any text file editor (such as Vi,emacs, etc.). The name of the shell script file does not have a qualified suffix name, usually without a

This article mainly refers to "Sed&awk".We usually use the editor, such as VI, is an interactive editor, is to modify which place, the first place to locate, usually by moving the cursor to complete. SED is a non-interactive, character

1. Write the shell script and calculate the 1-100; 2.   writing shell The script requires a number to be entered and then calculated from 1 to enter the number and, if required, if the number entered is less than 1 3.   writing shell

SED is designed to handle all editing tasks at once, particularly efficiently, saving users a lot of time, and SED is suitable for the following three scenarios:1. Edit files that are too large relative to the interactive text editor;2, editing

At work, there are times when you need to process some data, use Java to compare aspects, such as hbase, but you need to execute it in the shell, so the extra bag is harder to get into, and it's easy to package with Maven. First Pop.xml

The Hill sort (Shell sort) is a kind of insertion sort, which is an improvement on the direct insertion sorting algorithm. This method is also known as narrowing the incremental sort, because of the DL. The shell was named after it was introduced in

inadvertently see the router inside there is a dynamic domain name, and later on-line a check that it is possible to establish a personal website, and then allow other users on the network to access their own servers, such as their own establishment