Fix “Page Up” key in Terminal.app to work with irssi

Recently while using the OS X Terminal I noticed that the “Page Up” and “Page Down” keys do not send an actual page up sequence to an active Terminal session. This was discovered with the irssi app, but it actually pertains to the Terminal in general.

Instead, it seems that the default behavior is to manipulate the Terminal.app’s built in buffer. This works well for every day use in the Terminal, but if you are using a program like irssi, which has its own buffer, this can be an annoyance.

The solution is simple and can be solved with a simple key combination modifiers to page up and page down within Terminal applications, and not their app buffers.

Keyboards on MacBook Pro, Powerbook, iBook, and Macbook owners can try using :

[shift][fn]-[page up]

or

[shift][fn]-[page down]

If you have a standard Apple or Mac keyboard use the following instead:

[shift]-[page up]

or

[shift]-[page down]

If you would to edit any other keyboard settings in the Terminal, here is a screenshot for your reference.

Please note that this is a screen shot from OS X Leopard (10.5) which will differ from OS X Tiger (10.4) and other versions of OS X, but the behavior remains in other versions of Mac OS X as well..