# 1.26 help

    help [ <topic> { <sub-topic> } ]

The `help` command provides an hierarchical source of information which is supplementary to this Users’ Guide. To obtain information on any particular topic, type `help` followed by the name of the topic, as in the following example

    help commands

which provides information on Pyxplot’s commands. Some topics have sub-topics; these are listed at the end of each help page. To view them, add further words to the end of the help request, as in the example:

    help commands help

Information is arranged with general information about Pyxplot under the heading `about` and information about Pyxplot’s commands under `commands`. Information about the format that input data files should take can be found under `datafile`. Other categories are self-explanatory.

To exit any help page, press the `q` key.