General :: Get The MAC Address From Windows Xp And Remove It From A File On A Unix Box?

I am tring to get the MAC address from windows xp and remove it from a file on a unix box. This is what I have so far:

getmac | plink.exe -ssh -pw "my pw" -noagent -m commands.txt root@192.168.1.82
commands.txt
cd /root
tr '-' ':' | tr -d '[:blank:]'

now this is what I get

10:9A:CD:5F:04:8ADeviceTcpip_{5A79FE8D:F227:4B91:9459:2701486C5D94}

All I need is the MAC. Everything after Device* is not needed.The file is /var/db/captiveportal_mac.db. The MAC address are listed like this.

MAC1
MAC2
MAC3
MAC4
MAC5