Option-Y: The operation is performed without user confirmation.
Yum-y install <software Name>: Install the specified software.
Yum-y update: Upgrade the software.
Yum-y update <software Name>: update a specific file
Yum check-Update: checks whether software needs to be updated.
Yum info <software Name>: displays information about the specified software.
Yum info updates: displays information about all software updates.
Yum info installed: displays information about all installed software.
Yum list: displays the software that has been installed and can be installed.
Yum list <software Name>: displays the installation status of the specified software package.
Yum List Installed: displays the list of installed software
Yum grouplist: displays all groups defined by the yum server.
Yum search <keyword>: Search for the specified keyword in the yum Source
Yum clean packages: clears cached RPM package files
Yum clean headers: Clear cache RPM header files
Yum clean: Clear all RPM caches
Yum remove <software Name>: deletes a specified software package.