GNU/Linux

ls -lct /etc | tail -1 | awk '{print $6, $7, $8}'
oct. 28 2013
tune2fs -l $(df / | tail -1 | cut -d" " -f1)  | grep created
Filesystem created:  Mon Oct 28 13:41:23 2013

macOS

ls -lct / | tail -1 | awk '{print $6, $7, $8}'
12 oct 2012

Windows

wmic os get installdate /value
InstallDate=20140716200726.000000+120
systeminfo | find /i "date"
Date d'installation originale: 16/07/14, 20:07:26
reg query "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion" /v InstallDate
InstallDate    REG_DWORD    0x53c6bf5e

Sources :


Historique

  • 2018-05-21 : Ajout de la section macOS.