The @ command displays or assigns a value to the last referenced stack number. The @ symbol can be used in place of a stack number where a stack number is expected within an input command string. In addition, the stack number value associated with the @ symbol is updated every time a stack number is specified within an input command string.
Syntax
── @ ─┬──────────────────┬─────────────────────────────────────────────┤ ├─────┬─┬─<number>─┤ └─ = ─┘ ├─ @ ──────┤ └─ $ ──────┘
Explanation
The following text describes the meaning of each construct:
@ = <number>
If <number> is a valid stack, then the last referenced stack is changed to <number>.
@ = @
The last referenced stack is set to itself.
@ = $
The last referenced stack is set to the last referenced segment, if the last referenced segment is the segment number for a valid stack.
STACK @ HiSTORY
The stack history for the last referenced stack is displayed.