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AIX Version 4 Keyboard Technical Reference

Understanding Key Sequences

Most keying is done with either one-key or two-key sequences. For example, the a character is most often produced by one key (the A key) and the A character by two keys (Shift-A key sequence). If more than one state key is pressed when a character is keyed, (for example, Ctrl-Shift-A) only one state key affects the conversion of the character. With the Ctrl-Shift-A key sequence, the control state takes precedence over the shift state.

Some three-key sequences have special meanings for this operating system. The following keystroke combinations start the indicated system function. The notation Padn, where n is a digit, indicates the n key on the numeric keypad to the right of the main keyboard area.

Note: Functions started with the Alt-key (or Shift-key) sequence can be selected with either the left or right Alt key (or Shift key).

There are two types of key sequences that have special meaning for this operating system:

The following key sequences issue special instructions to the operating system:

Ctrl-Alt-Pad4 Invokes the kernel debugger.
Ctrl-Alt-Pad1 Performs a system dump to the primary device. This key sequence works only from the native keyboard.
Ctrl-Alt-Pad2 Performs a system dump to the secondary device. This key sequence works only from the native keyboard. Supports dumping to a logical volume or tape. Requires user intervention in releases prior to AIX Version 4.2.1.

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