pytho count avro file
Get the latest released version or build it from source.
https://github.com/jwoschitz/avrocount/releases/latest
Then simply invoke the tool via
java -jar avrocount.jar /path/to/myfile.avro
And it will print the amount of records found within the file to stdout.
Folders containing avro files
java -jar avrocount.jar /path/to/folder