If you are going to dual boot and your computer has room for 2 drives. The way I would recommend doing it is to add a second drive for Linux, and disconnect to windows drive from the computer. Do a normal linux install. And then add the windows drive back in. Then you can set one of the drives as the default boot device and if you want to boot to the other just open the Boot options on boot.
This keeps things totally separated and you can even remove one of the drives later if you want to single boot.
diff -y -W 200 file1 file2
Shows a side by side diff of 2 files with enough column width to see most of what I need usually.
I have actually aliased this command as diffy
ctrl-r
searching bash history
du -sh * | sort -h
shows size of all files and dirs in the current dir and sorts them in ascending order so you can easily see the largest files or dirt ant the end of the list
ls -ltr
Shows the most recently modified files at the end of the listing.