ssh login and key file permissions

If your key files are not being used when trying to ssh into a server, set the following permissions on your server account:

> chmod 711 /home

> chmod 700 /home/.ssh

> chmod 600 /home/.ssh/*

Easy git documentation install

I constantly forget where to get the latest git docs from. 
xmlblog gist'd a simple function that does the work for you.

How to recursively list the total size of select files in a linux directory

The command below will list the total size of all jpg's in the foo directory.

$foo> find . -name *.jpg | xargs du -hc