btool is a own program in $SPLUNK_HOME/bin It is a bit more tricky to use because you have to be in splunk env. I tested successful following procedure on UF 9.2.2 . /opt/splunkforwarder/bin/setSplunkEnv
btool inputs list without sourcing the Splunk Env you get missing libraries error: /opt/splunkforwarder/bin/btool inputs list
/opt/splunkforwarder/bin/splunkd: error while loading shared libraries: libmongoc-1.0.so.0: cannot open shared object file: No such file or directory
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