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
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b33526-2b600.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b33526-2b600.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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