READ LINE (SET)
Specifies whether or not the GNU READLINE library will be used
to parse commands entered from the terminal.
The GNU READLINE library allows command line editing and
history recall (with editing). This library is available
on most Unix/Linux platforms. Dataplot does not support
this capability for Windows implementations.
By default, this feature is disabled. To specify that
command lines should be parsed by the READLINE library,
enter the command
This capability is provided as a convenience for those
Unix/Linux users who are familiar with the capabilities
of READLINE from other applications.
This capability only applies to commands that are entered from
the terminal (i.e., commands read from macros or other files
do not use this capability).
When the READLINE capability is supported and the
SET READLINE ON command is entered, then the following is
- The current command line can be edited. By default,
the editing is performed using EMACS style commands.
Alternatively, you can request vi style editing commands.
- You can recall previously entered commands (use
Cntrl-r to search the history list starting with the
most recently entered commands and Cntrl-f to search the
history list in the order the commands were entered).
The history list only starts with commands entered
after the SET READ LINE ON command was entered and it
will only include commands entered from the termininal
(i.e., it will not include commands entered from the
The editing capabilities supported by readline are extensive
and we do not document them here. They are documented in full
at the readline web site:
This documentation lists the editing commands that are
available and shows how you can customize key bindings.
Note that Dataplot does not provide any customized commands
or command completion.
SET READ FORMAT <ON/OFF>
where <ON> specifies that the READLINE capability will be used
and <OFF> specifies that it will not.
SET READ LINE ON
SET READ LINE OFF
Dataplot allows recently entered commands to be listed with
the LIST (or L) command. Selective commands may be re-executed
or saved with the REPEAT (or R) and SAVE (or S) commands,
respectively. However, no editing capability is provided
for the REPEAT and SAVE commands.
The LIST, REPEAT, and SAVE capabilities are independent of the
READLINE capabilities. Commands entered via the READLINE
capability are added to the DATAPLOT command list (i.e., the
commands displayed by the LIST command).
The maximum line length for a command is 255 characters. This
is true whether READLINE is used or not.
The READLINE capability is off.
= List previously entered commands.
= Execute previously entered commands.
= Save previously entered commands.
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Date created: 04/23/2009
Last updated: 11/07/2016
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