disk-by-serial

#!/bin/sh
if [ $# -ne 1 ]; then
    cat <<EOF
Usage: $0 SERIAL

The command finds block device by serial number
EOF
    exit 1
fi

for d in /sys/block/*; do
    out=$(udevadm info -q property $d)
    SERIAL=$(echo "$out" | grep -oP 'ID_SERIAL_SHORT=\K.+')
    [ -n "$SERIAL" ] || SERIAL=$(echo "$out" | grep -oP 'ID_SERIAL=\K.+')
    if [ "$SERIAL" == "$1" ]; then
        echo "$out" | grep -oP 'DEVNAME=\K.+'
        exit
    fi
done

exit 1

# vim: ft=sh