11-08-2008
Please, review script.
Hi guys,
I 've been brewing this shellscript, but I can't test it until next tuesday.
In the meantime I am too curious wether it will work or not, so I'd like to hear your comments.
Background:
I want to watch the user quota for mailboxes in various email-domains on a IMAP-server.
I have a list of directories in which the user mailboxes reside (domains.txt). The dirnames are named after the specific email-domain.
The users' mailbox quota is at 100 MB.
So if the quota will reach 100MB or more, it is written to a report for the mailserver admin.
And an email is written to the responsable person for the email-domain.
shell=bash
OS=Debian Linux
Thanks & regards, A.
#!/bin/bash
echo " Exceeded mailbox-quota in domains" > /home/tmp/report.txt
echo "*************************************" >> /home/tmp/report.txt
#
ls /home/mailboxes > /home/tmp/domains.txt
#
while read domain; do
cd /home/mailboxes/$domain
echo "Checked mailboxes of $domain...." >> /home/tmp/report.txt
du -k --max-depth=1 | sort -rn > /tmp/$domain.f1
sed -e '1d' < /tmp/$domain.f1 > /tmp/$domain.f2
sed -e 's%./% %g' < /tmp/$domain.f2 > /tmp/$domain.userquota
while read num user; do
if [ $num -ge 100000 ] ; then
echo " $user's mailbox is $num Kb in $domain. This should be 100000" >> /home/tmp/$domain.report.txt
echo " $user's mailbox is $num Kb" >> /home/tmp/report.txt
echo " " >> /home/tmp/report.txt
echo "---------------------------" >> /home/tmp/report.txt
#
/usr/bin/mutt -nx -e 'set from=admin@mailhostingdomain.com; set realname="My RealName"' \
-s "Noreply: emailquota exceeded " -a /home/tmp/$domain.report.txt postmaster@$domain < /dev/null
else
echo " No quota have been exceeded for $domain " >> /home/tmp/report.txt
echo " " >> /home/tmp/report.txt
echo "---------------------------" >> /home/tmp/report.txt
fi
done < /tmp/$domain.userquota
done < /home/tmp/domains.txt
/bin/mv /home/tmp/report.txt /home/work/report-$(date +%F).txt
/usr/bin/mutt -nx -e 'set from=admin@mailhostingdomain.com; set realname="My RealName"' \
-s "Noreply: New emailquota report $(date + %F) " -a /home/work/report-$date +F).txt postmaster@mailhostingdomain.com < /dev/null
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LEARN ABOUT DEBIAN
service
service(8) System Manager's Manual service(8)
NAME
service - run a System V init script
SYNOPSIS
service SCRIPT COMMAND [OPTIONS]
service --status-all
service --help | -h | --version
DESCRIPTION
service runs a System V init script in as predictable an environment as possible, removing most environment variables and with the current
working directory set to /.
The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the
invoked script. service passes COMMAND and OPTIONS to the init script unmodified. All scripts should support at least the start and stop
commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start com-
mand.
service --status-all runs all init scripts, in alphabetical order, with the status command.
EXIT CODES
service calls the init script and returns the status returned by it.
FILES
/etc/init.d
The directory containing System V init scripts.
ENVIRONMENT
LANG, TERM
The only environment variables passed to the init scripts.
SEE ALSO
/etc/init.d/skeleton,
update-rc.d(8),
init(8),
invoke-rc.d(8).
Jan 2006 service(8)