This assumes there is only one user on the machine (remove /'whoami' otherwise) and that you used the same username on both installs (modify dest. It will back them up in a format that dpkg can read * for after your reinstall, like this: sudo apt-key add ~/Repo.keysīefore you reinstall, you should probably back up the settings from some of your programs, this can easily be done by grabbing folders from /etc and all the content from your user directory (not just the stuff you can see in nautilus!): rsync -progress /home/`whoami` /path/to/user/profile/backup/hereĪfter you reinstall, you can restore it with: rsync -progress /path/to/user/profile/backup/here /home/`whoami` # yum repolist 10.A quick way of backing up a list of programs is to run this: dpkg -get-selections > ~/Package.list List available RepositoriesĬheck all enabled Repositories use command yum repolist To search for a Package using yum yum search. To Reinstalled a already installed package we can use command yum reinstall Information of PackageĬheck the Package Info like Package Architecture, Version, Size, Description by using yum info # yum list recent (List all the recent packages in yum repo) 5. # yum list httpd (Information about httpd packages) # yum list installed (List all the installed packages) To list all installed packages in system and available packages in YUM repository server use the yum list To refer more yum command options and features you can use yum help.

To update all installed Packages and Repositories use yum update. We can use yum command to update a already installed package from its lower version to upper released version. Update all Installed Packages or a Single Package

# yum install httpd* -y (yes confirmation) 2. Purpose of yum is to install rpm packages easily with all required dependencies for administrators. It is used to install, uninstall, update, list the available packages and search the rpm packages from the database.

YUM stands for Yellowpage Updater Modifier is a Package Manager tool for rpm package supportable Linux distributions.

Rhel list installed packages