gdrive_dload.sh
#!/bin/bash
 
MAILS=(
user1@example.com
user2@example.com
)
 
for MAIL in "${MAILS[@]}"
do
    echo "=========================================================================="
    echo ">> Downloading Google drive files for user ${MAIL}"
    echo "=========================================================================="
    /home/antisa/bin/gam/gam user "${MAIL}" get drivefile query "'me' in owners" targetfolder gdrive_dload/"${MAIL}-gdrive"
    echo ">> Compressing folder for "${MAIL}""
    zip --quiet --recurse-paths --compression-method bzip2 gdrive_dload/"${MAIL}-gdrive.zip" gdrive_dload/"${MAIL}-gdrive"
    echo ">> Removing folder for "${MAIL}""
    rm -rf gdrive_dload/"${MAIL}-gdrive"
done

References