Stay focused on work when you want, and goof off when you don't. Concentration is a simple Python 3 console utility to block distracting sites when you need to focus, while allowing you to easily take timed breaks. Internally uses /etc/hosts file as the mechanism to block sites.

pip3 install concentration

# Or if pip is already set to use Python 3
pip install concentration

To keep focused (blocking distracting sites):

sudo concentration improve

To take a small 5 minute timed break:

sudo concentration break

To take a long 60 minute timed break:

sudo concentration break -m 60

To access all sites:

sudo concentration lose

You can add more files to the blocked list by putting them in the following files (new line delimited):

• ~/.concentration.distractors
• /etc/concentration.distractors

You can make sure sites are visible even if concentration is enabled by putting them in the following files (new line delimited):

• ~/.concentration.safe
• /etc/concentration.safe

Thanks and I hope you find concentration useful in your effort to get more done!

~Timothy Crosley