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
Spotlight syntax, mdfind examples, and metadata attributes
Using duti to configure the default applications for file types

osx.txt
shell.txt
shortcutsandui.txt
uichanges.txt

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

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