My .bash_aliases file

.bash_aliases

# Most of these from: http://www.cyberciti.biz/tips/bash-aliases-mac-centos-linux-unix.html
alias ll='ls -alh'

# Directory Navigation
alias cd..='cd ..'
alias ..='cd ..'
alias ...='cd ../../'
alias ....='cd ../../../'
alias .....='cd ../../../../'
alias .4='cd ../../../../'
alias .5='cd ../../../../..'

alias diff='colordiff -u --ignore-all-space'

alias h='history'

alias ports='netstat -tulanp'

alias wget='wget -c'

alias df='df -H'
alias du='du -ch'

alias l='ls -CF'
alias f='pushd `dirname $_`'
alias g='git'