This how to describe to configure YUM to work behind proxy server using username password for authentication. YUM is great tool available in. Linux System Administration and Configuration After installation, Linux requires configuration and systems administration. Corporate systems need monitoring, backups. Reddit user Toweringhorizon painstakingly assembled the drawing To a Little Radio using MS Paint tools like the oil brush, stretching the medium while. Responses to CheckPoint SNX install instructions for major Linux distributions. Pingback Checkpont SNX on Ubuntu 14. LTS Trusty Tahr kenfallon. Mozilla, Seamonkey and Firefox on Linux plugin and application configuration tutorial. In this article, well learn how to install, update, remove, find packages, manage packages and repositories on Linux systems using YUM tool developed by RedHat. To update a specific package or packages try the following yum update nameofpackage. If you want to update a package to a specific version number you need to use the update to command as follows yum update to nameofpackage versionnumber. For example yum update to flash plugin 1. Now think about this situation. You have version 1. Also available is version 2 of the software. Now imagine you want to install the bug fixes but not move to the new version because quite frankly it sucks. So how do you update without upgradingSimply use the update minimal command as follows yum update minimal programname bugfix. How To Check For Updates Using YUM Without Installing Them. Sometimes you want to know what needs updating before actually performing the update. The following command will return a list of programs that need updating yum check updates. How To Remove Programs Using YUMIf you want to remove an application from your Linux system then you can use the following command yum remove programname. Removing programs from your system might seem straight forward but by removing one application you may prevent another one from working. For instance, imagine you had a program that monitors a folder and if it finds a file the program sends you an email letting you know there is a new file. Imagine that this program requires an email service to actually send the email. If you delete the email service the program that monitors the folder will be rendered useless. To remove programs that are dependent upon the program you are removing using the following command yum autoremove programname. In the instance of the monitoring program and the email service, both applications would be removed. The auto remove command can also be used without any parameters, as follows yum autoremove. This searches your system for files that werent explicitly installed by you and which have no dependencies. These are known as leaf packages. List All The RPM Packages Available Using YUMYou can list all of the available packages within YUM simply by using the following command yum list. There are extra parameters that you can add to list to make it more useful. For instance to list all the available updates on your system run the following command yum list updates. To see all the packages that are installed, on your system run the following command yum list installed. You can list all of the files that were installed without the use of repositories by running the following command yum list extras. How To Search For RPM Packages Using YUMTo search for a specific package use the following command yum search programnamedescription. For instance to search for Steam use the following command yum search steam. Alternatively, search for a particular type of application as follows yum search screen captureBy default the search facility looks in the package names and summaries and only if it doesnt find results will it search descriptions and URLs. To get yum to search descriptions and URLs as well use the following command yum search screen capture all. How To Get Information About RPM Packages Using YUMYou can retrieve important information about a package by using the following command yum info packagename. The information returned is as follows Name. Architecture. Version. Release. Size. Repository. Summary. URLLicense. Description. How To Install Groups Of Applications Using YUMTo return a list of groups using YUM run the following command yum group list more. The output returned from this command is similar to the following You can, therefore, install the KDE Plasma desktop environment using the following command yum group install KDE Plasma workspacesBefore you do that though you might wish to find out what packages make up the group. To do this run the following command yum group info KDE Plasma workspaces more. You will notice that when you run this command you will see a list of groups within groups. You can, of course, run the group info on these groups as well. How To Install RPM Files Local To Your System Using YUMWhat happens if the RPM file isnt going to be installed from one of the repositories set up on your system. Perhaps you have written your own package and you want to install it. To install an RPM package local to your system run the following command yum localinstall filename. If the file requires dependencies then the repositories will be searched for the dependencies. Install New Software Puppy Linux Install. How To Reinstall An RPM Package Using YUMIf you have been unlucky and a program that was once working for whatever reason has stopped working you can reinstall it again by using the following command yum reinstall programname. This command will reinstall the same program with the same version number as the one already installed. How To List All The Dependencies For An RPM Package. To list all of the dependencies for a package use the following command yum deplist programname. For example to find all of the dependencies of Firefox use this yum deplist firefox. How To List All The Repositories Used By YUMTo find out which repositories are available on your system to use the following command yum repolist. The returned information will be as follows repository id I. E. epelx. 866. 4repository name I. E. extra packages for enterprise Linux 7status number of packages in repository. This guide gives a good overall indication as to how YUM works. However, it only scratches the surface of all the possible usages of YUM. For full information including listing all the possible switches run the following command man yum.