Folder & Files
How to know a folder size
du -hs /mnt/d/foldername
Check last update of a file
date -r README.md
Services
Restart a service
sudo systemctl restart [service_name]
sudo systemctl restart nginx
Access Control
Create a new user (Linux)
sudo adduser [username]
Times
Configure server Timezone (Linux)
sudo dpkg-reconfigure tzdata
See all commands of ‘date’
man date