[CentOS] about backup of centos instead of fresh install

[Andrei Rolando León Salas]

Hi, i have a little question but not sure if exist in centos. Theres any
way to reotre all centos to default? like a goback or a security backup? im
realtive new with this and want to do a full back up of centos before
trying to install things. Also i really prefer to run a commands instead of
do a fresh install of centos. Theres any like this?
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