I see a lot of pages with information about how to setup the aliases for the terminal but some put them on the .bashrc file and I always though that it should be a better (more organized) way. And there is.
If you want to alias your commands just create in your home directory a .bash_aliases file
And put your aliases there with the following notation.
For example now that I’m working with vagrant I was seing myself typing a lot of times things like “vagrant up”, “vagrant halt” and “vagrant ssh” so I created 3 aliases for those commands
alias vu='vagrant up'
alias vh='vagrant halt'
alias vs='vagrant ssh'
Now I just type “vu” to run the vagrant box, “vh” to stop it and “vs” to access it.