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Displays one or more commands in the command history buffer. Syntax | |
LISTR[EDO] [m] [,n] {;ABS
;REL
;UNN}
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Parameters | |
- m,n
displays a range of commands in the command history buffer. m
is the starting number (least recent) and n is the ending number
(most recent). If m is equal to n,
only the specified command is displayed. m and n
can either be absolute (positive) numbers or relative (negative)
numbers; however, both must be
either relative or absolute. The use of these
parameters is discussed further in the table below. | START | END | RESULT |
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| (omitted) | (omitted) | All commands in history buffer are displayed. | | m | ,n | Command m through command n are displayed. | | m | (omitted) | Command m through the last command are displayed. | | (omitted) | ,n | The first command through command n are displayed. |
- ABS
displays the absolute command numbers. ABS is the default.
Absolute numbers are positive numbers beginning with the first
(least recent) command in the command history buffer. For
example, 1 is the first command in the command history buffer. - REL
displays the relative command numbers. Relative numbers are
negative numbers beginning with the last (most recent) command
in the command history buffer. For example, -1 is the last
command in the command history buffer. - UNN
suppresses command numbering.
Discussion | |
The LISTREDO commands displays the commands from least recent to most
recent. Up to 20 commands can be displayed. The LISTREDO command
is added to the command history buffer. Example | |
In this example, the first LISTREDO command is issued when the command
history buffer contains two commands. However, when the buffer
is displayed, three commands are listed since the LISTREDO
command is added to the buffer. The next LISTREDO command lists
all the commands in the commands history buffer with relative
numbers. Finally, the third LISTREDO command lists the third most
recent command through the most recent command with relative numbers.
>LISTREDO
1) DEFINE
2) FIND FINDX
3) LISTREDO
>LISTREDO ;REL
-4) DEFINE
-3) FIND FINDX
-2) LISTREDO
-1) LISTREDO ;REL
>LISTREDO -3 ;REL
-3) LISTREDO
-2) LISTREDO ;REL
-1) LISTREDO -3 ;REL
>
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