RH124 v8 CH14 Part 2: Installing Software (yum command)

You recently installed the KDE Plasma Desktop for testing purposes and now want to remove it. What would be the best way to remove it?

Use yum history to undo the installation

How could you find out which package installed journalctl?

Yum provides */journalctl This is similar to rpm -qf $(which journalctl)

How could you use yum to check for updates without installing them?

yum check-update

How can you check to see if there's an update available for the postfix package?

yum check-update postfix

Clear yum's cache

yum clean all

How would you install the KDE Plasma Workspaces group with yum?

yum groups install "KDE Plasma Workspaces" Use double quotes to protect white space!

How can you list all available package-groups with yum?

yum groups list

How can you display yum transaction history?

yum history list

List all installed packages on your system

yum list installed

What is the difference between these two commands: yum list httpd yum search httpd

yum list only looks at the package name when searching for httpd. yum search will search package names, descriptions, and summaries for the term httpd

How would you remove the postfix package using yum?

yum remove postfix

Search for a package by keyword.

yum search keyword example: yum search ssh will display all packages that have ssh somewhere in the name.

Update all packages on the system

yum update

How could you update only the httpd package?

yum update httpd