# show package information
alias ac='apt-cache show'

# search package
alias acs='apt-cache search'

# package versions policy
alias acp='apt-cache policy'

# update packages catalog
alias agud='apt-get update'

# upgrade forbidding package installation or removal
alias agug='apt-get upgrade'

# upgrade allowing package installation or removal
alias agdu='apt-get dist-upgrade'

# install packages
alias agi='apt-get install'

# clean packages cache
alias agc='apt-get clean;apt-get autoremove'