hi there,

I am relatively new to linux, i am using rocky, centos and ubuntu for me to familiarize and know those system. Since i am doing some testing and running some commands and sometimes im afraid to try some of it that my system will break and wont boot anymore.

Any suggestion which application or any steps i should do to take a system backup or an image or an application to do a file backup regularly or any command to do it which is applicable to rocky/centos and ubuntu just incase my system broke and i can easily restore to its last working state.

There are various GUI tools, but I would recommend rsync. Here's a HOWTO: https://www.howtogeek.com/427480/how...-linux-system/

I suspect the OP is looking for a "System Restore Point" type solution to allow the (system) rollback. A quick search turned up this is the rocky fora - the current favourite for this sort of thing if native snapshot is not available.

Pretty much fool-proof on Mint - if the port is good, same should apply to other distros. Doesn't (didn't) do user files by default, but that can be managed as well.

I recommend rsync too. You may read "man rsync" or "rsync --help" for details but this is what I would use.
Note that you may want to add more timestamps but that gets almost all you can get. I know whatever you use you are probably going to lose created at and changed at timestamps. Do that per each file system and you should have as full a backup as you should get. X E.