... trac . ... You can get a comprehensive list of the available options, commands and sub-commands by invoking `trac-admin` with the `help` command:. €а . ... The only exception is for the `help` command, but even in this case if you omit the environment, you'll only get a very succinct list of commands (`help` and `initenv`), the same list you'd get when invoking `trac-admin` alone. €а . ... Also, `trac-admin --version` will tell you about the Trac version (e.g. 0.12) corresponding to the program. €а ...