s3-dist-cp append to single s3 file code example

Example: s3-dist-cp download to local fs

aws emr add-steps --profile <> --cluster-id <> --steps Type=CUSTOM_JAR,Name=UPLOAD_JAR_CONFIG,ActionOnFailure=CANCEL_AND_WAIT,Jar=command-runner.jar,Args=[s3-dist-cp,--src,s3a://<>/,--dest,hdfs:///<>/<>/,--srcPattern=.*.*]