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APT-GET

• Clean up non-existent data
  
  # apt-get autoclean
• Update list
  
  # apt-get update
• Install/update a package
  
  # apt-get install <pkg>
• review dist-upgrade prior:
  
  # apt-get -Vsu -o Debug::pkgProblemResolver=yes dist-upgrade
• Apply updates
  
  # apt-get -Vu upgrade
• Upgrade all dependencies
  
  # apt-get -Vu dist-upgrade
• Search cache
  
  # apt-cache search <pkg>
• Remove and purge packages
  
  # apt-get --purge remove <pkg>

DPKG

• Install/Update package
  
  # dpkg -i <pgk>
• Check listing of installed packages
  
  # dpkg -l *<pkg>*
• file belongs to
  
  # dpkg --search /path/to/file
• List of file in package
  
  #dpkg -L <pkg>
• Info about package
  
  # dpkg -s <pkg>

SERVICES

• Manage services at init levels.
  
  # sysv-rc-conf
# update-rc.d