Tutorial by Examples: st

By default tee command overwrites the file. You can instruct tee to append to the file using the –a option as shown below. $ ls | tee –a file

PostmarkMailSender.java public class PostmarkMailSender implements MailSender{ private static Logger logger = Logger.getLogger("com.postmark"); private String serverToken; private static Gson gson; static { GsonBuilder gsonBuilder = new GsonBuilder(); ...

The cluster module allows one to start the same application multiple times. Clustering is desirable when the different instances have the same flow of execution and don't depend on one another. In this scenario, you have one master that can start forks and the forks (or children). The children work...

Detailed instructions on getting graphviz set up or installed.

Java StringWriter class is a character stream that collects output from string buffer, which can be used to construct a string. The StringWriter class extends the Writer class. In StringWriter class, system resources like network sockets and files are not used, therefore closing the StringWriter i...

A simple HTTP Request for the resource /index.html. The host www.example.com is specified in the HTTP Host header. GET /index.html HTTP/1.1 Host: www.example.com

package com.streams; import java.io.*; public class DataStreamDemo { public static void main(String[] args) throws IOException { InputStream input = new FileInputStream("D:\\datastreamdemo.txt"); DataInputStream inst = new DataInputStream(input); int count...

Locate and open your TIBCO BW bwengine.tra file typlically under TIBCO_HOME/bw/5.12/bin/bwengine.tra (Linux environment) Look for the line that states: *** Common variables. Modify these only. *** Add the following line right after that section tibco.deployment=%tibco.deployment% ...

A simple OGL 4.0 GLSL shader program with vertex position and color attribute. The program is executed with a phyton script. To run the script, PyOpenGL must be installed. A shader program consists at least of a vertex shader and a fragmant shader (exception of computer shaders). The 1st shader s...

A minimal setup for camera output preview (Swift 2, Swift 3) import UIKit import AVFoundation class ViewController: UIViewController { var session: AVCaptureSession? var cameraPreviewLayer: AVCaptureVideoPreviewLayer? override func viewDidLoad() { super.viewDidLoad() ...

Valgrind provides you with the lines at which the error occurred at the end of each line in the format (file.c:line_no). Errors in valgrind are summarised in the following way: ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0) The most common errors include: Illegal read/write er...

Detailed instructions on getting nfc set up or installed.

Accessing the 3rd element of the first subarray: my_array[1][2]

#include <stdio.h> #include <pthread.h> void *thread_func(void *arg) { printf("I am thread #%d\n", *(int *)arg); return NULL; } int main(int argc, char *argv[]) { pthread_t t1, t2; int i = 1; int j = 2; /* Create 2 threads t1 and t2 wit...

Detailed instructions on getting kinect set up or installed.Setting Up a Kinect Sensor Kinect for Windows 1.5, 1.6, 1.7, 1.8 Here are some simple steps to get your Kinect sensor up and running. Step 1: Mount the Sensor on a Stable Surface Place the sensor on a stable surface in a location wh...

This is how you can react to exceptions which have not been catched, similar to the system's standard "Application XYZ has crashed" import android.app.Application; import android.util.Log; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.text....

Request:"http://example.com" GET / HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: gzip Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate...

Request:"http://example.com" GET / HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: compress, gzip Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzi...

Request:"http://example.com" GET / HTTP/1.1 Host: example.com User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:53.0) Gecko/20100101 Firefox/53.0 Accept: text/html,application/xml;q=0.9,*/*;q=0.8 Accept-Encoding: gzip;q=1.0, compress;q=0.5 Accept-Language: en-US,en;q=0.5 Accept-E...

When you need to override Bill-To Contact and Bill-To Address info for a Customer, the very first step is to set correct values for the IsBillContSameAsMain and IsBillSameAsMain properties of the Customer DAC. Don't forget to invoke Update() method on the Customer cache right after you updated IsBil...