tracert utility

True indicates open*/public static Final Boolean IsOPen (final context context) {Locationmanager Locationmanager= (Locationmanager) context.getsystemservice (Context.location_service);GPS satellite positioning, positioning level can be accurate to the street (through 24 satellite positioning, in the outdoor and open location accurate, fast)Boolean GPS = locationmanager.isproviderenabled (Locationmanager.gps_provider);A location determined by the WLAN or mobile network (3G/2G), also known as AGP

cipher Huawei # New user name password[Lsw1-aaa]local-user Huawei Privilege Level3 # User Privilege Level[lsw1]ssh user Huawei Authentication-typepassword # Authentication Type[lsw1]local-user Huawei Service-type stelnet #stelnet that SSH[lsw1]stelnet Server Enable # Open SSH ServiceInfo:succeeded in starting the Stelnet server.650) this.width=650; "Src=" https://s4.51cto.com/wyfs02/M01/8E/60/wKiom1i-rbSh79oJAAEPk5A38_o613.png-wh_500x0-wm_ 3-wmp_4-s_428701895.png "title=" Tim20170307205504.png

1. precision IOS Memory leak Detection Tool : MleaksfinderIn general, iOS memory leak detection is mostly through the instruments inside the leaks. Leaks you can see how many instances of a certain category, and also point out some of the circular reference diagram and disclosure points. Although it looks good, but every time the actual use, more or less some problems, the most unbearable is clearly revealed but no alarm.To solve this problem, here is a mleaksfinder open source Library, which is

an input stream +FIS =NewFileInputStream ("D:\\tengyicheng\\timg.jpg"); Adis =NewDataInputStream (FIS); at //Create an output stream -FOS =NewFileOutputStream ("D:\\tengyicheng\\myfile\\timg.jpg"); -DOS =NewDataOutputStream (FOS); - //Loop Read Input - inttemp; - while(temp = Dis.read ())!=-1){ in Dos.write (temp); - } to}Catch(IOException e) { + e.printstacktrace (); - } the finally{ * Try { $

Calculate the time interval how many seconds can be used to calculate program code execution timeMode 1: Cftimeinterval begin = cfabsolutetimegetcurrent (); for 0 ; i++) { NSLog (@ "123456"); } = Cfabsolutetimegetcurrent ();Mode 2: NSDate *begin = [NSDate date]; for 0 ; i++) { NSLog (@ "123456"); } *end = [NSDate date]; NSLog (@ "%f", [end Timeintervalsincedate:begin]);Mode 3:Nstimeinterval start = [[NSDate Date] timeintervalsince1970]*1; for(N

the cursor Ctrl-w is used to delete a word to the left of the current cursor Ctrl-n equivalent to the DOWN ARROW key, which shows the next command The ctrl-t is used to reverse the position of the character and the previous character where the cursor is located. Alt-backspace is used to remove all of the bank's content, basically similar to ctrl-u. The alt-c is used to capitalize the character at the current cursor and subsequent characters in the word where the cursor is located are lowercase.

Function -- in VI input mode, the user can use BACKSPACE (BACKSPACE) to delete the contents of the front of the cursor, you can also use the DELETE key to delete the current character. In addition, a few keys are available in the VI command mode to delete a character or to delete the "x Key "for the entire line: Delete the character that the current cursor is in. " D-Key double-click " : Delete the line where the cursor is located " R Key ": Modifies the character that the cursor contains

The code is as follows:1#!/bin/SH2 #################################################################3 # Author:91coder4# blog:www.cnblogs.com/91coder5 #################################################################6 7 # Create a directory8path=/91coder9[-D"$Path"]||mkdir-P $PathTen One # Create a file A forNinch`seq Ten` - Do -random=$ (OpenSSL rand-base64 +|sed 's#[^a-z]# #g'|Cut-C2- One) the Touch$Path/${random}_91coder.html - DoneOperation Result:1[Email protected] ~]# ll/91coder/2T

Brent Simmons to solve the problem that is not present, as if the problem exists in the same way: The type system of Swift solves a problem that I have not met. I feel the same way about that, and I bet a lot of other objective-c developers will think the same thing.When I first started trying to use Swift, the compiler seemed to do the right thing with me 1. But as I became more familiar with the language, things got better, but sometimes its strange error messages made me feel li

) Output redirection, the output of the command command is saved to the file, and if the same file exists, the content command syntax for the file is overwritten: command > File(2) Enter the redirect, the contents of the file will be the input command syntax of the commands command: command (3) Error redirection, the command command execution error message output to the file in the order syntax: commands 2> file(4) Append redirect, the output of command command execution is added to the file tha

Toggle program Windowwin+w: All workspaces are displayed for easy switching===== Terminal Terminal =====ctrl + ALT + T: Open terminal tab: Auto-complete command or file name Ctrl + SHIFT + V: paste (no action required to copy in Linux, text is selected to be copied automatically) Ctrl + S Hift + T: New Tab CTRL + D: Close Tab CTRL + L: Clear Screen Ctrl + R + text: Search in input history Ctrl + A: move to the beginning of CTRL + E: move to End of Line Ctrl + C: Terminate current Task Ctrl + Z:

= =).toLowerCase (): Converts a string to lowercase characters.toUpperCase (): Converts a string to uppercase characters.Equalsignorecase (): Compares whether two strings are the same (case insensitive).4) StringBuilder and StringBuffer classYou need to use StringBuilder or stringbuffer when you need to do frequent concatenation of strings.5) Date class and SimpleDateFormat classThe date class is used to manipulate dates, and SimpleDateFormat is used to format dates.Note: Many of the methods av

class for encryption and decryptionPackage com. Example1;Import Java.util.Scanner;public class Example8_8 {public static void Main (string[] args) {String soucestring = "Ning I love You";Encryptanddecrypt person = new Encryptanddecrypt ();System.out.println ("Enter encryption password to encrypt the text" + soucestring);Scanner Scanner = new Scanner (system.in);String password = scanner.nextline ();String secret = Person.encrypt (soucestring, password);System.out.println ("ciphertext" + secret)

Analyzer or packet sniffer program-to capture or filter TCP/IP packets received or transferred from a specific interface on the network. It also saves the captured package to a folder. Tcpdump can be used on all major Linux distributions.5.netstat--Network StatisticsNetstat is a command-line tool for monitoring incoming and outgoing network packet information and interface information statistics. It is useful for system administrators to use it to monitor network performance and troubleshoot ne

lsof-i:6379See if a program on a port is up.Netstat-tnlpYou can view the listening ports, where L is listening, p is display program, n is the display IP instead of name, and T appears to be viewing only the contents of TCP.View memory usage or CPU usage every 5 seconds:$ vmstat 5-----------memory-------------Swap-------io------System------CPU---- R B swpd Free buff cache si so bi bo in 3 0 0 123047944 337712 6273224 0 0 0 1 0 0 0 0 0 0 0 0

First put the Exvim. Then modify the. vimrc file.1. Automatic line wrapping. Takes two steps:Set textwidth=70 for Word countSet Wrap sets Automatic wrappingSet linebreak "word wrapping, with the use of automatic line wrapping, the effect is very goodSet nowrap setting does not automatically fold rows2, highlight when the forwardSet Cursorline3, set the window color selection colorscheme darkblue4. Auto roll down set scrolloff=5 "Automatically roll down or roll up when the cursor is close to the

Decompiler PyDev Shelled Anyedit Propertieseditor System and Desktop Search The first three can be directly from the Eclipse Marketplace search download, the fourth plug-in can be clicked to download, other practical plug-ins and other work used to paste it!ReferenceHttps://dzone.com/articles/5-best-eclipse-plugins-2https://mcuoneclipse.com/2012/04/06/5-best-eclipse-plugins-3-system-and-desktop-search/The utility plug-in for Eclipse

1. View the current directory all file files and their size: Ls-la2. View the size of the current directory folder: Du-h--max-depth=1.3. Check the size and usage of all disks that are currently hanging on the system: DF-HL4. View the drive letter that the current system hangs on: Mount5. Find a file in the current directory and its subdirectories: Find./-name "*"6. Look for a character in the current directory and its subdirectories: Grep-rin "*".Linux Utili