Linux GZ and ungz comman

#!/bin/bash


# Set $DATE to current date and time
DATE="`date +%Y-%m-%d`"

 cd /backup
mysqldump -u root -pqazw123# mysql | gzip -c > mysql$DATE.sql.gz
mysqldump -u root -pqazw123# glpi | gzip -c > glpi$DATE.sql.gz


#mysqldump -u root -pqazw123# mysql > mysql$DATE.sql
#mysqldump -u root -pqazw123# glpi > glpi$DATE.sql

https://www.cyberciti.biz/faq/howto-compress-expand-gz-files/


gz
mysqldump -u root -pqazw123# mysql | gzip -c > mysql$DATE.sql.gz


ungz 

gzip -d file.gz