On my main machine, I generally reinstall my Linux distribution every 6-7 months, so it's good to find out when I first installed it by looking in the syslog file
The syslog file can be found under the installer directory on Ubuntu and Ubuntu based distributions /var/log/installer
The syslog file can be viewed by entering the following command in the terminal
cd /var/log/installer
sudo tail syslog
Since there is quite a lot of information, we can limit the number of lines output in the terminal by using the tail command followed by the -n (number).
This command below will output one line from the syslog file
sudo tail -1 syslog
Output from syslog file in the terminal, shows that I first installed my Linux Distribution on October 31st, 2020
