I'm sorry, but this is a poor cheat sheet. iwconfig is only useful if one uses the wireless-tools package, and at this point wpa_supplicant is the more fully featured, so you simply don't need it. ifconfig is outdated as well, and one should really be getting more familiar with the ip command. As far as some of these other commands, they are so ubuntu centric, and ... I'm...not...needing a cheat sheet for my desktop regardless. Sorry, but other than the mere scrap of a sudo command, this is quite useless.
I think if one wants to make cheat sheets, stick to "cheat sheets for users of Windows", cheat sheet for MacOS users"...maybe map some similar commands to similar programs. Other than that, stick to cheat sheets to certain aspects of cheat sheets. "SSH cheat sheet", "Samba cheat sheet", "gravy and biscuits cheat sheet."