#!/bin/bash

grd=`ls */vert*.b`
for f in ${grd[@]}; do
  dr=`dirname $f`
  fname=`basename $f`

  mid=`echo $fname | sed 's/vertcon\(.*\)20190601.b/\1/'`
  new="vertcon_3.0_20190601${mid}b"

  echo $f $dr/$new
  mv $f $dr/$new
done