Many open source users love a good Bash alias and are usually happy to show off a particularly robust .bashrc file when given the chance. If you’re a frequent user of Git, you might benefit from a few Git aliases mixed in with your other Bash aliases. Alternately, you can create aliases specific to Git with this git config command. This example sets the git co command to git checkout.

Source: LXer – What Git aliases are in your .bashrc?