rsrini7

#generate server and client keystore
keytool -genkeypair -alias server -keyalg RSA -dname "CN=Server,OU=Development,O=Test,L=Shanghai,S=SH,C=CN" -keystore server.keystore
keytool -genkeypair -alias client -keyalg RSA -dname "CN=Client,OU=Development,O=Test,L=Shanghai,S=SH,C=CN" -keystore client.keystore
keytool -list -keystore server.keystore

#copy server certificate into client.keystore
keytool -exportcert -alias server -file server-pub.cer -keystore server.keystore
keytool -importcert -alias server -file server-pub.cer -keystore client.keystore
keytool -list -keystore client.keystore

rsrini7

#!/bin/bash

# Generates a SSL certificate, java-ready with the hardcoded ips and name. 
# Change varibale names to suit your need, you can do JAVA_HOME=$JAVA_HOME too.

JAVA_HOME=/usr/lib/jvm/java-8-oracle
CERT_NAME="yurimdias"
STOREPASS="changeit"
KEYSTORE=$JAVA_HOME/jre/lib/security/cacerts
CERTIFICATE_PATH=./$(echo $CERT_NAME)

rsrini7

#include <NewPing.h>

#define TRIGGER_PIN  12  // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN     11  // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.

void setup() {
  Serial.begin(115200); // Open serial monitor at 115200 baud to see ping results.

rsrini7

Webcam is connected to Raspberry Pi. This flow is written on Raspberry Pi. It captures an image every 3 hours and tweets it to your Twitter account.

rsrini7

#Create bitbucket branch

##Create local branch

$ git checkout -b sync
Switched to a new branch 'sync'
$ git branch
  master
* sync

rsrini7

Ubuntu PPA cheatsheet

Installing a new PPA

With this command:

sudo add-apt-repository ppa:<ppa_name>

which needs an extra software package:

• On Ubuntu >=14.04: sudo apt-get install software-properties-common

rsrini7

#! /bin/sh 
# listppa Script to get all the PPA installed on a system ready to share for reininstall
# From: http://askubuntu.com/questions/148932/how-can-i-get-a-list-of-all-repositories-and-ppas-from-the-command-line

for APT in `find /etc/apt/ -name \*.list`; do
    grep -o "^deb http://ppa.launchpad.net/[a-z0-9\-]\+/[a-z0-9\-]\+" $APT | while read ENTRY ; do
        USER=`echo $ENTRY | cut -d/ -f4`
        PPA=`echo $ENTRY | cut -d/ -f5`
        echo sudo apt-add-repository ppa:$USER/$PPA
    done

rsrini7

firefox australis
sudo add-apt-repository ppa:ubuntu-mozilla-daily/ppa
sudo apt-get install firefox-trunk

sublimetext
sudo add-apt-repository ppa:webupd8team/sublime-text-2
sudo apt-get install sublime-text

Java Installer
sudo add-apt-repository ppa:webupd8team/java

rsrini7

@echo off
SET st3Path=C:\Program Files\Sublime Text 3\sublime_text.exe
 
rem add it for all file types
@reg add "HKEY_CLASSES_ROOT\*\shell\Open with Sublime Text 3"         /t REG_SZ /v "" /d "Open with Sublime Text 3"   /f
@reg add "HKEY_CLASSES_ROOT\*\shell\Open with Sublime Text 3"         /t REG_EXPAND_SZ /v "Icon" /d "%st3Path%,0" /f
@reg add "HKEY_CLASSES_ROOT\*\shell\Open with Sublime Text 3\command" /t REG_SZ /v "" /d "%st3Path% \"%%1\"" /f
 
rem add it for folders
@reg add "HKEY_CLASSES_ROOT\Folder\shell\Open with Sublime Text 3"         /t REG_SZ /v "" /d "Open with Sublime Text 3"   /f

rsrini7

Remote VisualVM

Start RMI registry

$ rmiregistry -J-Djava.rmi.server.codebase=file:$JAVA_HOME/lib/tools.jar

Create Policy file for jstatd

• Create a file named jstatd.all.policy
• With the following contents: