     send -s "\r" 
   }
 
-  if { [regexp "signature files copy to disk failed" $result] } {
+  if { [ regexp {signature files copy to disk failed} $result ] } {
 
     match_max 50000000
 

      send -s "exec vfs ls /kav_db\n"
    }

    expect timeout {
      send_user "connection timeout\n"
      close

}

;# to enable debug please change this value below to 1
log_user 0 

set filelist [lindex $argv 0]
set fp [open $filelist r]
