Alfred
AppleScript
DefaultKeyBinding.dict
Defaults
Emacs
Karabiner
Miscellaneous
Removing encryption from an Audible aax file
Resetting the login password, DaveGrohl, /etc/kcpassword, and /usr/bin/security
Using duti to configure the default applications for file types

osx.txt
shell.txt
shortcutsandui.txt

If you only read some pages, read the shell.txt or Miscellaneous page.

http://2048.fi/shellalt.txt
http://2048.fi/shellnotes.txt