La commande uptime affiche depuis combien de temps le système est lancé.
(output de la commande tldr uptime)
Wiki étudiants INGI
uptime : Print current time, uptime, number of logged-in users and other information.
uptime --pretty : Show only the amount of time the system has been booted for.
uptime --since : Print the date and time the system booted up at.
man uptime