Misc scripts for unix admin

cron_setup.sh

# Install cron to sun scheduled scripts
sudo apt update
sudo apt install cron
sudo systemctl enable cron

# Add you config in crontab
crontab -e

# Syntax (Reference: https://www.digitalocean.com/community/tutorials/how-to-use-cron-to-automate-tasks-ubuntu-1804) 
# minute hour dayofMonth month dayOfWeek <you-commands>
# e.g. print hello world every 5 minutes
*/5 * * * * echo "hello world"

# You can also use special syntax to define your schedules e.g.
@hourly curl www.google.com
@monthly rm -rfv /tmp/*.log
# or run a script on every boot
@reboot grep CRON /var/log/syslog