How To Create Postfix Maildir Directory’s Script

In my work i had to change from Postfix mailbox users to maildir users. Inside the home directory i had about 450 users directory that needed to create the maildir format inside. So i did this script.

#!/bin/bash
# Created by Pedro Oliveira

MYDIR="/home"

DIRS=`ls -l $MYDIR | egrep '^d' | awk '{print $9}'`

# "ls -l $MYDIR"      = get a directory listing
# "| egrep '^d'"           = pipe to egrep and select only the directories
# "awk '{print $8}'" = pipe the result from egrep to awk and print only the 8th field

# and now loop through the directories:
for DIR in $DIRS
do
   echo  ${DIR}
   rm ${DIR}/.bash* -fr
   rm ${DIR}/mail -fr
   rm ${DIR}/.mozilla -fr
   mkdir -p ${DIR}/Maildir/cur
   mkdir -p ${DIR}/Maildir/new
   mkdir -p ${DIR}/Maildir/tmp
   chown -R ${DIR}:mail ${DIR} 
done