YUM stands for Yellow-dog Updater Modified which is a tool that is used to manage software in our system. “ yum update” updates all the presently installed packages to their latest versionsįirst, let’s try and understand what yum is and then let’s see what these lists contain and why they need to be updated time to time. Let’s have a second look at the following words Let me expand what is written above with some more details. Then only the given software package and its dependencies are processed by the commands. If a particular software is added to the “yum update” or “yum upgrade” command like What is the difference between yum update and upgrade? “yum update” updates all the presently installed packages to their latest versions that are available in the repositories and “yum upgrade” performs the same action as “yum update”, but once finished it also removes all of the obsolete packages from the system. Let’s see the difference between these 2 commands and what happens internally once you execute these commands. In plain English, update and upgrade have almost the same meanings, so it can get confusing for a beginner to understand what these commands actually do. I guess to beginners, it just feels like a magic spell to get something installed!Īs time went on, so many of my google searches led to using very similar patterns of “yum update” and “yum upgrade” commands to install stuff. I was just happy that I was able to type something in the Terminal and it actually worked! I did not pay much attention to what I actually typed in.
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