How do I know what version I have?

English:Fess
1

(from github.com/rhayun)
how can i know the specific version i use?
i know i have 11.4 but what “patch”

i tried

/usr/share/fess/bin/fess -v

but i get:
Error: Could not find or load main class org.codelibs.fess.Version

thanks

2

(from github.com/marevol)
No options.
For rpm package, run rpm -qa|grep fess.