Here's a 'plain text extraction' of commandlinefu.com 's top 2500:
http://g33kinfo.com/info/wp-content/.../04/comfu1.txt
(looking for something to do, to learn&play on Linux? Do these...)
Another possible addition:
http://www.linuxblog.info/linux-forgotten-commands
(also has a boot-issues -> linux-rescue but very brief; I'd love to see a whole 'category' on this 'faq'!!)
I didn't see any on your super-great links page like: (thegeekstuff.com & sysrq)
http://www.thegeekstuff.com/2008/12/...agic-sysrq-key
Another thegeekstuff.com (amazing amount of stuff there!), to answer a faq:
"What's going on? What logs? There's too many!" find /var/log -mmin 5 (or -amin)
http://www.thegeekstuff.com/2009/06/...xamples-part-2
(I don't 'know' about accessing the tons of things on scribd [safe? legal? how to dl=join] like:
https://www.scribd.com/doc/203192265...Basic-Commands
https://www.scribd.com/book/27208422...Best-Practices )
A topic that I'm currently
'into' is: make tinyconfig: minimal kernel (VBox;no initrd!)
http://swift.siphos.be/linux_sea/kernelbuilding.html