You can find all the hands-on information on the following link: https://losc.ligo.org/s/events/GW150914/GW150914_tutorial.html
In this tutorial, you will need Python 2.7 and a Jupyter notebook server. It is recommended to install Python using Anaconda:
$ mv licence.txt ~/.continuum
$ wget https://repo.continuum.io/archive/Anaconda2-4.2.0-MacOSX-x86_64.sh
$ bash Anaconda2-4.2.0-MacOSX-x86_64.sh
$ conda update conda

You will also need the following python packages: numpy, scipy, matplotlib, h5py. Use pip to install them: 
$ pip install numpy …

Download the following files and data in a specific directory:
wget https://losc.ligo.org/s/events/GW150914/H-H1_LOSC_4_V1-1126257414-4096.hdf5
wget https://losc.ligo.org/s/events/GW150914/H-H1_LOSC_4_V1-1126259446-32.hdf5
wget https://losc.ligo.org/s/events/GW150914/L-L1_LOSC_4_V1-1126259446-32.hdf5
wget https://losc.ligo.org/s/events/GW150914/H-H1_LOSC_16_V1-1126259446-32.hdf5
wget https://losc.ligo.org/s/events/GW150914/L-L1_LOSC_16_V1-1126259446-32.hdf5
wget https://losc.ligo.org/s/events/GW150914/GW150914_4_NR_waveform.txt
$ wget https://losc.ligo.org/s/sample_code/readligo.py
$ wget https://losc.ligo.org/s/events/GW150914/GW150914_tutorial.ipynb

Launch Jupyter notebook server form the directory: 
$ jupyter notebook 

and you are ready!