pskpatil

Symmetic encryption

For symmetic encryption, you can use the following:

To encrypt:

openssl aes-256-cbc -salt -a -e -in plaintext.txt -out encrypted.txt

To decrypt:

pskpatil

#!/usr/bin/env bash
set -eu

# Noddy script to encrypt/decrypt files using openssl private (ssh) key.
# Works with files and stdin.
# Results are stdout.
#
# Requirements:
#   - openssl
#   - ssh private key: ~/.ssh/id_rsa

pskpatil

Programming Achievements: How to Level Up as a Developer

This gist is part of a blog post. Check it out at:

http://jasonrudolph.com/blog/2011/08/09/programming-achievements-how-to-level-up-as-a-developer

pskpatil

#ifdef SHELL
g++ -Wall -Werror -g -I../../cclib/rapidjson/include $0 && ./a.out
exit 0
#endif

// Output is:
// {"project":"rapidjson","stars":11}
// {"Name":"XYZ","Rollnumer":2,"array":["hello","world"],"Marks":{"Math":"50","Science":"70","English":"50","Social Science":"70"}}
// {"FromEmail":"sender@gmail.com","FromName":"Sender's name","Subject":"My subject","Recipients":[{"Email":"recipient@gmail.com"}],"Text-part":"this is my text"}

pskpatil

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class PingIP {

  public static void runSystemCommand(String command) {

		try {
			Process p = Runtime.getRuntime().exec(command);
			BufferedReader inputStream = new BufferedReader(

pskpatil

GNU Make Cheatsheet

Based on https://www.gnu.org/software/make/manual/html_node/Quick-Reference.html

Directives

Directive	Description
define variable define variable = define variable := define variable ::= define variable += define variable ?= endef	Define multi-line variables.
undefine variable	Undefining variables.