Text editing keystrokes

Command-Left » Go to beginning of line
Command-Right » Go to end of line
Command-Up » Go to beginning of document
Command-Down » Go to end of document
Command-Shift-Right » Select from cursor until end of line
Control-Shift-Down » Select from cursor until end of document

Source: Mac OS X switch guide


For all Cocoa programs use the Unix-based navigation keystrokes:
Control-a » Move your insertion point to the beginning of the paragraph
Control-e » Deposit your insertion point at the end of the paragraph
Control-d » Forward delete
Control-k » Delete all text from the insertion point to the right end of the line
Control-o » Insert a paragraph break, but leaves the insertion point where it was, above the break
Control-t » Move the insertion point one letter to the right and along with it drags whichever letter was to its left
Control-Delete » Delete the entire word to the left of the insertion point

Source: Missing Keystrokes in OS X (O'Reilly)



Remarks
  • 'Command' also known as 'Apple key' (⌘; the Apple key symbol apple disappeared from keyboards released on august 7th 2007 and later)
  • 'Option' also known as 'Alt'
  • Function also known as Fn

» Overview of the keyboard symbols