ShellScript that emails you size of dir

Shell Programming and Scripting
1

I have this so far:

#!/bin/sh

FOLDER='/home';
MAXSIZE='50';
MAILADRES='username@server.com';

if [ "du -sm $FOLDER | cut -f 1" > "50" ] ; then
echo "$FOLDER too big" | /usr/sbin/sendmail $MAILADRES
echo "test";
fi

But i need to figure out how to have it search all the users on the system and then find there email address to email them if they have one.

2

You can start with something like this.

Of course this script need to be run with sudo or under root

#!/bin/ksh

MAXSIZE=50
USERID_BOUNDARY=1000 # normaly regular userid start at a certain number, low userid habitualy are reserved for the system and applications
IFS=":"

while read username two userid groupid five homedir rest
do
    if [ "$userid" -gt "$USERID_BOUNDARY" ] ; then
       MAILADRES="$username@server.com"
       if [ "du -sm $homedir | cut -f 1" > "$MAXSIZE" ] ; then
           echo "$homedir too big" | /usr/sbin/sendmail $MAILADRES
           echo "test";
       fi
    fi
done < /etc/passwd
3

Or you can try checking Quota