rpm yum apt-get dpkg SwitchingToUbuntu/FromLinux/RedHatEnterpriseLinux

Task	Red Hat/Fedora	Ubuntu
Adding, Removing and Upgrading Packages
Refresh list of available packages	Yum refreshes each time it's used	apt-get update
Install a package from a repository	yum install package_name	apt-get install package_name
Install a package file	yum install package.rpm rpm -i package.rpm	dpkg --install package.deb
Remove a package	rpm -e package_name	apt-get remove package_name
Remove a package with configuration files	yum remove package_name	apt-get purge package_name
Check for package upgrades	yum check-update	apt-get -s upgrade apt-get -s dist-upgrade
Upgrade packages	yum update rpm -Uvh [args]	apt-get upgrade
Upgrade the entire system	yum upgrade	apt-get dist-upgrade
Package Information
Get information about an available package	yum search package_name	apt-cache search package_name
Show available packages	yum list available	apt-cache dumpavail
List all installed packages	yum list installed rpm -qa	dpkg --list
Get information about a package	yum info package_name	apt-cache show package_name
Get information about an installed package	rpm -qi package_name	dpkg --status package_name
List files in an installed package	rpm -ql package_name	dpkg --listfiles package_name
List documentation files in an installed package	rpm -qd package_name	-
List configuration files in an installed package	rpm -qc package_name	dpkg-query --show -f '${Conffiles}\n' package_name
Show the packages a given package depends on	rpm -qR package_name	apt-cache depends
Show other packages that depend on a given package (reverse dependency)	rpm -q --whatrequires [args]	apt-cache rdepends
Package File Information
Get information about a package file	rpm -qpi package.rpm	dpkg --info package.deb
List files in a package file	rpm -qpl package.rpm	dpkg --contents package.deb
List documentation files in a package file	rpm -qpd package.rpm	-
List configuration files in a package file	rpm -qpc package.rpm	-
Extract files in a package	rpm2cpio package.rpm | cpio -vid	dpkg-deb --extract package.deb dir-to-extract-to
Find package that installed a file	rpm -qf filename	dpkg --search filename
Find package that provides a particular file	yum provides filename	apt-file search filename
Misc. Packaging System Tools
Show stats about the package cache	-	apt-cache stats
Verify all installed packages	rpm -Va	debsums
Remove packages from the local cache directory	yum clean packages	apt-get clean
Remove only obsolete packages from the local cache directory	-	apt-get autoclean
Remove header files from the local cache directory (forcing a new download of same on next use)	yum clean headers	apt-file purge
General Packaging System Information
Package file extension	*.rpm	*.deb
Repository location configuration	/etc/yum.conf	/etc/apt/sources.list

Some of the information in this table was derived (with permission) from APT and RPM Packager Lookup Tables.

More technical information about Debian-style packaging can be found in Basics of the Debian package management system and the Debian New Maintainers' Guide.

Services

Services on Ubuntu are managed in a broadly similar way to those on Red Hat.

Graphical Tools

Services can be configured by clicking System -> Administration -> Services. A tool called Boot-Up Manager is also available.

Command Line Tools

Below is a table of example commands for managing services. The apache/httpd service is used as an example.

Task	Red Hat / Fedora	Ubuntu	Ubuntu (with sysv-rc-conf or sysvconfig)
Starting/stopping services immediately	service httpd start	invoke-rc.d apache start	service apache start
Enabling a service at boot	chkconfig httpd on	update-rc.d apache defaults	sysv-rc-conf apache on
Disabling a service at boot	chkconfig httpd off	update-rc.d apache purge	sysv-rc-conf apache off

Note: Whereas Red Hat and Fedora servers boot into runlevel 3 by default, Ubuntu servers default to runlevel 2.

Note: The service and invoke-rc.d commands call init scripts to do the actual work. You can also start and stop services by doing e.g. /etc/init.d/apache start on Ubuntu, or /etc/init.d/httpd start on Red Hat/Fedora.

Network

Graphical Tools

Fedora/RHEL have system-config-network, ubuntu pre 10.04 had gnome-nettool to edit static ip address, since 10.04 nm-connection-editor is the best choice. For Ubuntu 10.04 Studio there is only manual editing of files since NetworkMontor is not included