print "Hi"

?

import collections
collections.namedtuple?

collections.Counter??

*int*?

%quickref

collections.

2+10

_+10

10+20;

_

_10 == Out[10]

print 'last output:', _
print 'next one   :', __
print 'and next   :', ___

In[11]

_i

_ii

print 'last input:', _i
print 'next one  :', _ii
print 'and next  :', _iii

%history -n 1-5

!pwd

files = !ls
print "My current directory's files:"
print files

!echo $files

!echo {files[0].upper()}

import os
for i,f in enumerate(files):
    if f.endswith('ipynb'):
        !echo {"%02d" % i} - "{os.path.splitext(f)[0]}"
    else:
        print '--'

%magic

%timeit range(10)

%%timeit
range(10)
range(100)

for i in range(5):
    size = i*100
    print 'size:',size, 
    %timeit range(size)

%%bash
echo "My shell is:" $SHELL
echo "My memory status is:"
free

%%writefile test.txt
This is a test file!
It can contain anything I want...

And more...

!cat test.txt

%lsmagic

>>> # Fibonacci series:
... # the sum of two elements defines the next
... a, b = 0, 1
>>> while b < 10:
...     print b
...     a, b = b, a+b

In [1]: for i in range(10):
   ...:     print i,
   ...:     

%%writefile mod.py

def f(x):
    return 1.0/(x-1)

def g(y):
    return f(y+1)

import mod
mod.g(0)

mod.g(0)

%debug

enjoy = raw_input('Are you enjoying this tutorial ?')
print 'enjoy is :', enjoy

%%perl
@months = ("July", "August", "September");
print $months[0];

%%ruby
name = "world"
puts "Hello #{name.capitalize}!"

%connect_info

%qtconsole