Server’s Serial Number from command line – RedHat/CentOS

To get service/serial number from command in linux run command below. The first result is the service tag which usually in alphanumeric.
[server@dev-test ~] # dmidecode | egrep -i “serial|product”
output example:
Product Name: PowerEdge R710
Serial Number: 378CDE1
Product Name: 0DCR13
Serial Number: ..ABC980CDE4545XYZ.
Serial Number: AB66X66
Serial Number: Not Specified
Serial Number: Not Specified
Port Type: Serial Port 11204A Compatible