Command line open codes
Usage: open [-e] [-t] [-f] [-b ] [-a ] [filenames]
Help: Open opens files from a shell.
By default, opens each file using the default application for that file.
If the file is in the form of a URL, the file will be opened as a URL.
-a Opens with the specified application.
-b Opens with the specified application bundle identifier.
-e Opens with TextEdit.
-t Opens with default text editor.
-f Reads input from standard input and opens with TextEdit.
This will open an html page for editing in TextWrangler, you must be in the directory the file you want to open is in.
open -a TextWrangler \indexPage.html