I recently needed to acquire the Dell service tag number of a remote linux server. The method I used to do so was simple. I used the following command:

‘dmidecode -s system-serial-number’

Depending on your system, you may be able to obtain the following information using ‘dmidecode -s’:

Host4:/usr/local# dmidecode -s

dmidecode: option requires an argument — s
String keyword expected
Valid string keywords are:
bios-vendor
bios-version
bios-release-date
system-manufacturer
system-product-name
system-version
system-serial-number
system-uuid
baseboard-manufacturer
baseboard-product-name
baseboard-version
baseboard-serial-number
baseboard-asset-tag
chassis-manufacturer
chassis-type
chassis-version
chassis-serial-number
chassis-asset-tag
processor-family
processor-manufacturer
processor-version
processor-frequency