Win/Mac/Linux get host serial number command

Commands for obtaining host serial number on major system platforms

Windows

wmic bios get serialnumber

This is the HP 840G3, and the host serial number is directly obtained through commands

Mac OS X

ioreg -l | grep IOPlatformSerialNumber

Linux

sudo dmidecode -t 1 | grep Serial

This is a Lenovo X260, and the host serial number is directly obtained through commands