root@wurt:~# nvram show
opo=8
wan_device=vlan1
il0macaddr=00:16:01:8D:62:23
boardrev=0x13
et0macaddr=00:16:01:8D:62:22
wl0_akm=psk  
watchdog=1000
boot_wait=on 
wl0_infra=1  
et0mdcport=0 
hw_rev=3
reset_gpio=7 
pmon_ver=CFE 1.0.37-1.08
lan_gateway=192.168.0.1
wl0_ifname=eth1
gpio1=ses_led
vlan0ports=1 2 3 4 5*
wl0_mode=wet 
sromrev=2
boardtype=0x467
lan_netmask=255.255.255.0
wl0_ssid=oak 
nvram_version=1.03
wl0id=0x4318 
pmon_date=Jul 14 2006 14:09:08
ag0=2
wl0_closed=0 
wl0gpio0=0   
wl0gpio1=0   
wl0gpio2=2   
wl0gpio3=0   
wl0_wpa_psk=Now is the time!
melco_id=30182
wan_proto=dhcp
memc_config=0x00048000
pa0itssit=62
cctl=0
lan_dns= 192.168.0.1
lan_ifnames=vlan0 eth1
pa0maxpwr=0x4e
lan_proto=static
lan_ipaddr=192.168.0.54
clkfreq=200
vlan1hwname=et0
aa0=3
wl0_wep=disabled
sdram_config=0x22
vlan1ports=0 5
ccode=0
lan_ifname=br0
boardflags=0x2758
sdram_refresh=0
sdram_ncdl=0x20521
gpio14=ses_button
et0phyaddr=30
wan_ifname=vlan1
wan_hostname=wurt
wl0_radio=1
pa0b0=0x168b
pa0b1=0xfabf
pa0b2=0xfeaf
sdram_init=0x0100
wl0_wpa=enabled
vlan0hwname=et0
wl0_channel=1
et1phyaddr=0x1f
language=en  
boardnum=00  
wl0_crypto=psk














#!/usr/bin/gawk -f

BEGIN {
  rip="192.168.0.54"
  fwp="/home/msh/openwrt-brcm-2.4-squashfs.trx"

  pingcmd="ping "rip
  tftpcmd="tftp -v -m binary "rip" -c put "fwp

  tries=0
  tob=0  

  while (pingcmd | getline po){
    tries++
    if (tries==2){
      printf("Connect power now.\n")
    }     
    if (match(po,"[ \t]ttl=100[ \t]")){
      printf("Uploading firmware.\n")  
      while (tftpcmd | getline to){  
        if (match(to,"[Ss]ent [0-9]+ [Bb]ytes")){
          tob=substr(to,RSTART,RLENGTH)
          gsub("[^0-9]","",tob)
          printf("Upload done.\n")
        }
      }  
      close(tftpcmd)
      break
    }
  }  
  close(pingcmd)