• Editing text on a Kindle 3
• Terminal / console access on a Kindle 3
• Ubuntu Linux on your Kindle 3
• K3 SSH client

• ed Wikipedia entry
• A few key ed commands explained in brief
• Ed Cheat Sheet
• ed man page
• Text Editing with ed
• Fast editing examples using cat, ed, and sed
• ex Wikipedia entry
• ex detailed guide
• Dale Dougherty and Tim O'Reilly's excellent (and free) Unix Text Processing has a very detailed section on ex beginning on page 178.

Of course, on the system I administrate, vi is symlinked to ed. Emacs has been replaced by a shell script which 1) Generates a syslog message at level LOG_EMERG; 2) reduces the user's disk quota by 100K; and 3) RUNS ED!!!!!!
...
When I use an editor, I don't want eight extra KILOBYTES of worthless help screens and cursor positioning code! I just want an EDitor!! Not a "viitor". Not a "emacsitor". Those aren't even WORDS!!!! ED! ED! ED IS THE STANDARD!!!

/eink | Sep 30, 2010

set myText to "Count of events in iCal's calendars." & return
tell application "iCal"
  repeat with myCal in calendars
    set myText to myText & return & (name of myCal) & ": " & (count events of myCal)
  end repeat
end tell
display dialog myText

/mac | Sep 01, 2010