sudo tar -czf /var/log/$(date +%Y-%m-%d).tar.gz /home/labex/project/

sudo tar -czf /home/labex/project/$(date +%Y-%m-%d).tar.gz /var/log/

sudo tar -cf /home/labex/project/$(date +%Y-%m-%d).tar /var/log/

sudo gzip /var/log/