Commodities.txt

commodities

List the commodity symbols used or declared in the journal.

Flags:
     --used                 list commodities used
     --declared             list commodities declared
     --undeclared           list commodities used but not declared
     --unused               list commodities declared but not used
     --find                 list the first commodity matched by the first
                            argument (a case-insensitive infix regexp)

This command lists commodity symbols/names - all of them by default, or
just the ones which have been used in transactions or P directives, or
declared with commodity directives, or used but not declared, or
declared but not used, or just the first one matched by a pattern (with
--find, returning a non-zero exit code if it fails).

You can add cur: query arguments to further limit the commodities.