Solve : Linux sh Script for files older than?

1.	Solve : Linux sh Script for files older than?
Answer» I have a backup of mysql databases and backup file is with time and date in name, like this daily_amavisd_2016-10-01_05h28m_Saturday.sql.gz daily_amavisd_2016-10-02_05h28m_Sunday.sql.gz daily_amavisd_2016-10-03_05h28m_Monday.sql.gz So I NEED a SCRIPT to check if the OLDEST file in folder /backup/amavisd/daily is not older than one week. If it is older than one week it gives me status "backup FAILED" if it is not older than 1 week than gives me status "backup OK" Can someone help me with sh script for that?

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