sledgehammer exercise

Exercise: 1. Find all files or directories in the/var/directory that are subordinate to the root and belong to the group Mail [[emailprotected]~]#find/var/ -userroot-groupmail-ls2634434drwxrwxr-x 2rootmail4096 NBSP;AUGNBSP;NBSP;7NBSP;09:10NBSP;/VAR/SPOOL/MAIL264398NBSP;NBSP;NBSP;NBSP;4NBSP;-RW-RW---- 1rootmail NBSP;1924NBSP;JULNBSP;31NBSP;16:45NBSP;/VAR/SPOOL/MAIL/JAY264569NBSP;NBSP;NBSP;72NBSP;-RW------- 1rootmail 67044aug709:10/var/spool/mail/root2.

in the " xamarin+prism trial Sledgehammer: Customizing cross-platform Outlook mailbox apps "There is a reference to Microsoft Identity authentication, which is a big chunk of attention, as a follow-up to these points of knowledge." the previous chapter uses the Microsoft Authentication Library (MSAL) class library for certification, in fact the last use of azure AD V2.0 OAuth2.0 authentication, and supports all user authentication: Individual

Article Source: (Linux Shell) The first chapter--Small trial sledgehammer (next)1.6 Arrays and associative arrays1.6.1 Preparation KnowledgeBash supports common arrays and associative arrays at the same time. An ordinary array can use integers only as an array index, and associative arrays can use strings as an array index. Associative arrays are quite useful in a very large number of operations.1.6.2 Practical WalkthroughThere are many ways to define

data high byte of the small end machine is placed at the high address, and the low byte is placed at the lower address. The x86 structure is a small-end mode.The Pshort occupies 2 bytes, and the 16 binary in memory is the 0x01 0x02, and the corresponding 16 binary number is 0x0201.Pshort + 2 points to the array array's subscript 4 element, occupies 2 bytes, 16 in memory is 0x05 0x06, the corresponding 16 binary number is 0x0605.The int64 type of pint64 is indeterminate, but according to the nam

encode, the total data volume of about 1908M;Directly hit 41 percent, pro.The smaller the data, the less I/O, the time to rub down: file Start/End data format Data Volume Start/End file Size (M) Programme time (s) Bigdata Characters/characters 500 million 4663/4663 Divided into several ordered small files, then a multi-way merge sort 772 Bigdata Characters/bytes 500 million 466

fixed length of 4 bytes of the way to encode, the total data volume of about 1908M;Directly hit 41 percent, pro.The smaller the data, the less I/O, the time to rub down: file Start/End data format Data Volume Start/End file Size (M) Sorting Scenarios time (s) Bigdata Characters/characters 500 million 4663/4663 Divided into several ordered small files, then a multi-way merge sort 772 Bi

([' Password: ', ' continueconnecting (yes/no)? '],timeout=5 ') if i==0:ssh.sendline (passwd) elifi==1:ssh.sendline (' yes\n ') ssh.expect (' password: ') ssh.sendline (passwd) ssh.expect (' # ') ssh.sendline (shell_cmd) ssh.expect (' # ') exceptpexpect. eof:data=ssh.before #读取shell命令运行的结果ssh. Close () Exceptpexpect. timeout:print "Connecttimeout ..." ssh.close () returndata# Return shell command Run result Defget_host (): Cmd= ' name= ' hostname ' ip= ' ifconfigeth0|grepinet|grep-v127.0.0.1|gr

. Build (); Notification. Defaults=Notificationdefaults.sound; Notification. Flags=notificationflags.noclear; Notification. Contentintent=intentcontent; Notifymanager=(Notificationmanager) Getsystemservice (Context.notificationservice); Notificationmanager Notificationmanager=Notifymanager; Notificationmanager.notify (0, notification); } classNotificationbroadcastreceiver:broadcastreceiver { Public Override voidOnReceive (Context context, Intent Intent) {String action=Intent.

;makemakeinstall-name:mkdirlog_pathfile :path=/opt/mysql/data/logstate=directory-name:chownmysql1file: path=/opt/mysql/owner=mysqlgroup=mysqlrecurse=yes-name:mysql_install_db shell:chdir=/opt/mysql/scripts/./mysql_install_db--user=mysql--basedir=/opt/ Mysql/--datadir=/opt/mysql/data-name:chownmysql2file:path=/opt/mysql /owner=rootrecurse=yes-name:chowndatafile:path=/opt/mysql/data /owner=mysqlrecurse=yes-name:copymysql_initcopy:src=files/ mysqldest=/etc/init.d/-name:chmodmysql_initfile:path=/etc

consider the complexity of the expansion of the business, kill Chicken Yan with sledgehammer.Design too many layers, make a Hello world, all have to come five or six files, the project will not go on.In fact, the idea of agile development is the answer, simple, the simplest solution is the best solution, enough on the line, in a refactoring to improve the level of architecture.According to this idea, I put the bottom frame selection also changed, a start with hibernate, too inflexible, change m

effectOK, when you're done here, even if you succeed, you can create a recognizable object in the Imagetarget, then you can. Let's look at the effect.Part III: Epilogue (continue to rip)Recently I also used the Easyar SDK in the project, after the launch, I will write a development process, then open source. I hope you will continue to support. More hope that the vast number of developers into the industry of AR Development. Do not know the knowledge can communicate with me oh,, we progress tog

', p, ' vertices ', V, ' Facevertexcdata ', Jet (size (v,1)), ' Facecolor ', ' w ', ' edgecolor ', ' flat '); Make a triangular grid plot with patches and set the color view (3); grid On;axis Equal% t_8clc,clear% XY's three-dimensional graph with contours% [X,y]=meshgrid ( -1:.1:1);% Surf (x,y,x.*y), figure; Contour (x,y,x.*y,30)%sin XY The three-dimensional graphs and contours [X,y]=meshgrid (-PI:.1:PI); Surf (X,y,sin (x.*y)), figure; Contour (X,y,sin (x.*y), 30) Copyright NOTICE: This articl

software, the implementation process is not simple software installation, there are user requirements refinement, functional design, System setup and a lot of training work. Now there are many management informatization project implementation, the early project objectives are vague, the scope of the implementation process is constantly spreading, the implementation cycle is difficult to control, and ultimately lead to project failure, so the project implementation team and implementation method

: (Uistoryboardsegue *) Segue Sender: (ID) Sender {//Get the new view controller using [Segue Destinationviewcontroller]. Pass the selected object to the new view Controller.} */- (ibaction) Presslogin: (ID) Sender {NSString* Name = @"Jack";NSString* Pass = @"123456";//Determine if correct, and popup dialog prompt if([_mname. TextIsequal:name] [_mpassword. TextIsequal:pass]) {Uialertview * alert =[[uialertview alloc]initwithtitle:@"Hint"message:@"User name and password correct, login succ

the keyboard letter, installed system began it.2, do not die before the concept and macroscopic things, the concept of things are behind slowly hands more to understand, in school, learned a little j2se grammar, began to die Java that set of SSH, the last job or did a C #3, understand the simplest syntax, with their own think the most proficient in the simplest way to do, remember that year, the main function in Java string[the parameters of the meaning of the args, took a good big kung fu, the

Good newsGood newsGood newsGood newsGood newsGood news, this series of scripts has been opened on GitHub, I named "Easy Shell " (Click this entry).Now that you have included the scripts in the previous installments, there will be many other scripts that change the world of life to continue to join in the future.Suppose you are also interested, and hope that you will also give a share of strength. Your support is my greatest strength.How to use?!1. Direct Web page open "Https://github.com/longerz

Article Source: (Linux Shell) The first chapter--Small trial sledgehammer (next)1.6 Arrays and associative arrays1.6.1 Preparation KnowledgeBash supports both normal and associative arrays, and normal arrays can use integers only as an array index, whereas associative arrays use strings as an array index. Associative arrays are quite useful in many operations.1.6.2 Practical WalkthroughThere are many ways to define an array, and you can use a column o

-"Radio"Name="Myrad"Value="604800">a week -"Radio"Name="Myrad"Value="2592000">January -"Radio"Name="Myrad"Value="31536000"> One year -"Submit"Name="Submit"Value="Submit"> - in - to + - the * $Request.setcharacterencoding ("Utf-8");Panax NotoginsengString Name=request.getparameter ("username"); -String Pw=request.getparameter ("Password"); the if(name!=NULLpw!=NULLname.equals ("Admin") pw.equals ("123456")){ +Session.setattribute ("sessionname", name); AString Ch=request.getparameter ("Myrad"

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 to execute shell scripts, such as the following:SH script.sh or./script.shBut before we execute the script, we need to execute permissions on the script, or the script won't execute.chmod a+x script.shIn th

; } Module_init (hello_ INIT); module_exit (hello_exit); Second file: Makefile (note m uppercase and no suffix prefix, the following all and clean under the line of instructions before the blank type of a tab to build)The contents are as follows:Obj-m: = hello.oKernel_dir: =/lib/modules/$ (Shell uname-r)/buildPWD: = $ (shell pwd)AllMake-c $ (Kernel_dir) subdirs=$ (PWD) modulesCleanRM *.o *.ko. Phony:clean3, Execution (note: When prompted operation not permitted please add sudo before t