After putty prompts this "warning", how to return to newAgent?

login as: root
root@10.1.89.156"s password:
Access denied
root@10.1.89.156"s password:
Last login: Wed Nov 28 17:45:40 2018 from 10.2.163.161
[root@web ~]-sharp cd /home/was/newAgent
[root@web newAgent]-sharp n
-bash: n: command not found
[root@web newAgent]-sharp cd newAgent.log
-bash: cd: newAgent.log: Not a directory
[root@web newAgent]-sharp tail -f
tail: warning: following standard input indefinitely is ineffective
^C
cd /
^[^[^[i

Dec.24,2021
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