• Create a service file: stock_db.service
• Put it in /lib/systemd/system/
• Reload systemd using command: systemctl daemon-reload
• Enable auto start using command: systemctl enable stock_db.service

To change stock_db.sh:

systemctl stop stock_db vim /usr/bin/stock_db.sh systemctl daemon-reload systemctl start stock_db

Change time on a linux server:

timedatectl timedatectl set-timezone 'EST'

sudo dpkg-reconfigure tzdata