DanBrother的部落格

Steps to De-install Oracle 12c Management Agents:

1. Invoke the AgentDeinstall.pl script:

export AGENT_HOME=/u01/agent12cr2/core/12.1.0.4.0

$AGENT_HOME/perl/bin/perl $AGENT_HOME/sysman/install/AgentDeinstall.pl -agentHome $AGENT_HOME

2. Manually remove the targets, which were being monitored by the Management Agent you deinstalled, from the Enterprise Manager Cloud Control console.

3. Manually delete the agent base directory.
rm -rf /u01/agent12cr2

[Reference]
https://docs.oracle.com/cd/E24628_01/install.121/e24089/deinstall_agent.htm#EMADV234