If the readline package has been compiled in, then when
units is used interactively, numerous command line editing
features are available. To check if your version of units
includes the readline, invoke the program with the `--version'
option.
For complete information about readline, consult the documentation for
the readline package. Without any configuration, units will
allow editing in the style of emacs. Of particular use with
units are the completion commands.
If you type a few characters and then hit `ESC' followed by the
? key then units will display a list of all the units which
start with the characters typed. For example, if you type metr and
then request completion, you will see something like this:
You have: metr metre metriccup metrichorsepower metrictenth metretes metricfifth metricounce metricton metriccarat metricgrain metricquart metricyarncount You have: metr
If there is a unique way to complete a unitname, you can hit the tab key
and units will provide the rest of the unit name. If units
beeps, it means that there is no unique completion. Pressing the tab
key a second time will print the list of all completions.
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