Você pode adicionar os seguintes aliases em ~/.bash_profile:
# Directory traversing
# shorter go to parent directory
alias ..='cd ..'
# In case you miss the space when typing cd ..
alias cd..='cd ..'
# Go two directories up
alias ..2='cd ../..'
# Go three directories up
alias ..3='cd ../../..' #Go three directories up
# You can add as many of these as you like, obviously
# Various
# Shorter syntax for installing packages, adapt for your environment
alias canhas='sudo apt-get install'
# If you have to edit files as root often (adapt for your editor of choice)
alias snano='sudo nano'Espero que isso ajude a tornar sua vida um pouco mais produtiva!