#!/bin/csh 

source nfshosts

foreach host ($hosts)
  ping $host -c 2 >&/dev/null
  if ("$status" == "0") then
     echo "Host: $host"
     ssh $host cp $1 $1.bak.`date '+%Y%m%d'`
     scp $1 $host\:$1 &
  else
     echo "$host est down"
  endif

end