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### Instruction:
TTY-3-ENV_VARS
### Response:
(Severity: 3), (Category: MGBL), (Description: Some instances of exec require the environment to be set up before exec initializes. The process which execs 'exec' has failed to do this.), (Recommended Action: Copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative and provide the representative with the gathered information.)
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