do i need to first write cd and then /usr and rest i wrote all combinations its just dont work for me can anyone help and write what excatly line sholud be after we finish devel-su and password rootme?

after that i got a screen :
busybox v119.0. git (meego 3:1.19-8+0m6) built-in shell (ash)
enter help for a list of built in commands.
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