IPTools

All IP tools (ping, traceroute, reverse dna lookup, IP routing, resolve host etc.) at a single place
http://www.iptools.com/

Give people an iPhone 4S, tell them it’s an iPhone 5. See what happens

The art of complex problem solving

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Nice depiction here
http://www.idiagram.com/CP/cpprocess.html

Groovy Tip: append list

Groovy provides plus method to append a new list to an existing list at a specified index

public List plus(int index, List additions)

e.g.

def items = [1, 2, 3]
def newItems = items.plus(2, 'a'..'c')

will result in [1, 2, 'a', 'b', 'c', 3]

Tip: Dynamically execute a groovy script

You can execute a dynamically generated groovy script or a script stored in a text file or variable using GroovyShell. See example below

def script = '''
def x = 'my dynamically'
def y = ' executed script'
return x << y
'''
 
def shell = new GroovyShell()
def result = shell.evaluate(script)
 
println result

The above script would print "my dynamically executed script" If you want to pass variable to your script, you can make use of binding variables. See below

def script = '''
def code1 = """${crypto.code1}"""
def code2 = """${crypto.code2}"""
return code1 << ' ' << code2
'''
 
def crypto = [code1:'my dynamically',code2:'executed script']
def shell = new GroovyShell( new Binding(crypto:crypto) )
def result = shell.evaluate(script)
 
println result

For those who are new to groovy operator << is for creating StringBuffer