Software installation as root user

[ragpach2]

I am new to Ubuntu.I have installed an sdk on my vm but as a root user.During the installations I might have installed many other softwares like curl python etc pertaining to it too.
Now I realize I should have rather used sudo to be safe.I want access to all the software installed when I was root.I could change permissions maybe but I am not sure about what other programs did I install as root user.How do I know which all did I install as root? Kindly help me.Also once I figure out is re installation the only safe option?
Thank you.

[oldrocker99]

You shouldn't create a root account, as you've probably figured out. A user account still has temporary "Super User" access, and running as root is dangerous.

[ajgreeny]

The only way to install any software in Ubuntu is as root, either in the non-recommended manner you used, ie, creating a root user, or by temporarily raising your user privileges using sudo.

I do not think it will make any difference to your ability to find out what was installed, and if you run command

grep -i " install " /var/log/dpkg.log.1 /var/log/dpkg.log

you should get a list of everything installed (after the OS was installed) in date order; which user installed things should not make a scrap of difference to that output.

There should be absolutely no need to reinstall the complete OS, but in future do please use the sudo apt install command, or the software applications already available, the only one of which I can talk about being synaptic as that is the one I use if I want a GUI application.