Preview gz S3 files in shell/cli interface.
host:/home/user/s3cli $ ~/python3/bin/python3 main.py
Provide bucket name.
host:/home/user/s3cli $ ~/python3/bin/python3 main.py my_bucket_name
S3>
S3> racct/DY_Position_SD/file_0_100.2019-06-17.13_39_12.IQ.csv.gz 45