Essentials remove nicknames

#!/bin/bash
DPATH="/home/minecraft/Minecraft/plugins/Essentials/userdata/*"
BPATH="/home/minecraft/Minecraft/plugins/Essentials/userdata/Backup/*"
TFILE="/tmp/out.tmp.$$"
[ ! -d $BPATH ] && mkdir -p $BPATH || :
for f in $DPATH
do
  if [ -f $f -a -r $f ]; then
    /bin/cp -f $f $BPATH
   egrep -v '^nickname\: ' f
  else
   echo "Error: Cannot read $f"
  fi
done
/bin/rm $TFILE