Command line command to read Oracle Database export Success Message In log File

We have several oracle 19c servers with daily exports. I would like to find a way to run a command to read the export log file to find the success message for the day. e.g. I would like to putty into the linux server have a command I can copy and paste that will read the daily export log file and tell me in one command/output that the export was successful or not? or any better ideas to automate reporting that daily exports are successful on 40+ servers?