How to get the serial number of the disk in Linux .

#!/bin/bash
#    NAME
#      getSerial.sh - Get HDD/SDD serial number

echo ""
echo "Device name and Serial Number"
filename="/tmp/devices"
lsblk |grep disk | awk '{print $1}' > $filename
sed -i -e 's/^/\/dev\//' $filename

while read -r device
do
  serial=$(smartctl -i $device |grep Serial)
  printf '%s - %s\n' "$device" "$serial"
done < $filename
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# EndOfFile
# -------------------------------------------------------------------

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