How to take the backup of admin.xml, sapconnections.xml, as.xml, dsconfig.txt?

Hi all,

I’m new to the bods, want to know How to take the backup of following configuration files:

1. admin.xml
2. sapconnections.xml
3. as.xml
4. dsconfig.txt

Can anyone tell steps to back up and where we can find those files?

Thanks in advance

Regards:

Vijay