saltnlight5

// http://docs.oracle.com/javase/6/docs/technotes/guides/security/crypto/CryptoSpec.html

// MessageDisgest
//   - Take input text/bytes and produce a fixe length digest
//   - MD5, MD2, msgDigest-1
// 
// Cipher
//   - Take cleartext text and key and produce a ciphertext
//   - Symmetric uses secret key (fast): DES, 3DES are fixed key length
//   - Asysmmetric uses public/private key (slow): AES, RSA are variable length

saltnlight5

# Set bash shell prompt - show current working dir and shell name in two lines.
# The '\e]2;\w\a' will set and update the term title bar
export PS1='\e]2;\w\a\e[32m\]\u@\h:\e[33m\]\w\e[0m\]
$(basename $SHELL)> '

# Set kshshell prompt - show current working dir and shell name in two lines.
export PS1='$USER@$HOSTNAME:$PWD
$(basename $SHELL)> '

# Grep dir recursively with certain file types only

saltnlight5

# Number comparison: [[ -gt, -ge, -lt, -le ]]
# Number comparison: (( <, <=, >, >= ))

# String comparison: [[ ==, != ]]
# String comparison: -z zero_length_string, -n not_zero_length_string
# String comparison: 
  [[ $a == z* ]]   # True if $a starts with an "z" (pattern matching).
  [[ $a == "z*" ]] # True if $a is equal to z* (literal matching).
  [ $a == z* ]     # File globbing and word splitting take place.
  [ "$a" == "z*" ] # True if $a is equal to z* (literal matching).

saltnlight5

#!/usr/bin/env bash
#
# String replace on a file, or all files in a directory
# Author: Zemian Deng 10/26/2012
#
# Usage:
# ./replace.sh my_file localhost `hostname`
# ./replace.sh my_dir localhost `hostname`
# DRY=1 ./replace.sh my_dir localhost `hostname`
#

saltnlight5

// String variable substitutions
def parseVariableNames(String text) {
	def names = []
	def pos = 0, max = text.length()
	while (pos < max) {
		pos = text.indexOf('${', pos)
		if (pos == -1)
			break
		def end = text.indexOf('}', pos + 2)
		if (end == -1)

saltnlight5

/* Usage
groovy tzconverter.groovy '2012-10-24 00:00 EST'
groovy tzconverter.groovy '2012-10-24 00:00 CST' EST
groovy tzconverter.groovy '2012-10-24 00:00 MST' EST
groovy tzconverter.groovy '2012-10-24 00:00 PST' EST
groovy tzconverter.groovy '2012-10-24 00:00 EDT' EST
*/

fromDt = args[0]
toTz = args.length > 1 ? args[1] : TimeZone.getDefault().getID()

saltnlight5

package it.data;

import java.util.Date;

import javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class User {
	@Id

saltnlight5

DROP TABLE IF EXISTS TEST;
CREATE TABLE TEST(ID INT PRIMARY KEY, NAME VARCHAR(255));
INSERT INTO TEST VALUES(1, 'Hello');
INSERT INTO TEST VALUES(2, 'World');
SELECT * FROM TEST ORDER BY ID;
UPDATE TEST SET NAME='Hi' WHERE ID=1;
DELETE FROM TEST WHERE ID=2;

saltnlight5

http://www.thegeekstuff.com/2009/07/linux-apache-mod-ssl-generate-key-csr-crt-file

# openssl genrsa -des3 -out www.thegeekstuff.com.key 1024
Generating RSA private key, 1024 bit long modulus
.......................................++++++
...................................................++++++
e is 73547 (0x01001)
Enter pass phrase for www.thegeekstuff.com.key:
Verifying - Enter pass phrase for www.thegeekstuff.com.key:

saltnlight5

@Grab('org.quartz-scheduler:quartz:2.1.6')
@Grab('org.slf4j:slf4j-simple:1.7.1')
import org.quartz.*
import org.quartz.impl.*
import org.quartz.jobs.*

import static org.quartz.DateBuilder.*
import static org.quartz.JobBuilder.*
import static org.quartz.TriggerBuilder.*
import static org.quartz.CalendarIntervalScheduleBuilder.*