Liquibase Installation Troubleshooting

Liquibase was install in the following location

C:\liquibase

when I run the following command on cmd,

liquibase

I get error

the system can not find specified path

I added liquibase to system variable

when I run the following command on cmd

java -version

The following output is displayed

    java version "1.8.0_271"
    Java(TM) SE Runtime Environment (build 1.8.0_271-b09)
    Java HotSpot(TM) Client VM (build 25.271-b09, mixed mode, sharing)

I also tried navigating to C:\liquibase and ran

liquibase --help

and the output was

the system can not find specified path

Any suggestion on what should be adjusted to run liquibase?