Manage system packages

Major packaging system families

• Debian style (.deb) - Debian, Ubuntu, Linux Mint, Raspbian
• Red Hat style (.rpm) - Fedora, CentOs, Red Hat, OpenSUSE

Packaging system tools

• Debian style:
  • Low level: dpkg
  • High level: apt-get, apt, aptitude
• Red Hat style:
  • Low level: rpm
  • High level: yum, dnf

Finding a package in a repository

• Debian:
  • apt-cache search <searchString>
  • apt search <searchString>
• Red Hat:
  • yum search <searchString>

Installing a package from a repository

• Debian:
  • apt-get install <packageName>
  • apt install <packageName>
• Red Hat:
  • yum install <packageName>

Installing package from a package file

• Debian:
  • dpkg -i <packageFile>
• Red Hat:
  • rpm -i <packageFile>

Removing a package

• Debian:
  • apt-get remove <packageName>
  • apt remove <packageName>
• Red Hat:
  • yum erase <packageName>

Updating packages from a repository

• Debian:
  • apt-get update && apt-get upgrade
  • apt update && apt upgrade
• Red Hat:
  • yum update

Upgrading package from a package file

• Debian:
  • dpkg -i <packageFile>
• Red Hat:
  • rpm -U <packageFile>

Listing installed packages

• Debian:
  • dpkg -l
• Red Hat:
  • rpm -qa

Determining whether a package is installed

• Debian:
  • dpkg -s <packageName>
• Red Hat:
  • rpm -q <packageName>

Displaying information about an installed package

• Debian:
  • apt-cache show <packageName>
  • apt show <packageName>
• Red Hat:
  • yum info <packageName>

Finding which package installed a file

• Debian:
  • dpkg -S <file>
• Red Hat:
  • rpm -qf <file>