Here is how to quickly calculate the days since a date, like your birthday from commandline bash:
export START=1979-05-28 && echo $((($(date +%s)-$(date +%s --date "$START"))/(3600*24))) days
Discussion
2023.12.18 will be the 10,000 days of my life in this world.
I dont think i will make it to 100,000 some day
so I will celebrate on that day
I just use Wolfram Alpha.
I stayed beautiful every day as much as possible. Even when people were toxic , nasty, or wasted my time.....
#Beautiful at any age
#Beautiful processing
As Psychologist I reccomend- toxic people- move on, dont let them ruin your day!
Make it a function like this. I remove the "days" string as I have more uses without it in scripts. Also simplified seconds per day
dayssince () {
echo $((($(date +%s)-$(date +s --date "$1"))/(86400)))
}
You can put that in your ~/.bashrc or other scripts loaded from such to simply call
dayssince 1979-05-28
If you want the "days" string, can call
printf "%d days" $(dayssince 1979-05-28)