bash# tar xfz DBI-1.18.tar.gz
This should create a directory called DBI-1.18. Lets go into the directory and start the compile and then install the package:
bash# cd DBI-1.18/ bash# perl Makefile.PL bash# make bash# make install
There will be other stuff that comes on the screen, but if none of it looks like error messages then you are probably doing everything correctly. Now, let's go back to the directory below us and expand the next one.