Please, review script. Post: 302256187

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Top Forums Shell Programming and Scripting Please, review script. Post 302256187 by algernonz on Saturday 8th of November 2008 01:08:49 PM

11-08-2008

Registered User

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

algernonz

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LEARN ABOUT DEBIAN

parallel-slurp

PARALLEL-SLURP(1)														 PARALLEL-SLURP(1)

NAME

       parallel-slurp - copy files from listed hosts

SYNOPSIS

       parallel-slurp [OPTIONS] -h hosts.txt -L destdir remote local

DESCRIPTION

       pssh provides a number of commands for executing against a group of computers, using SSH. It's most useful for operating on clusters of
       homogenously-configured hosts.

       parallel-slurp gathers specified files from hosts you listed.

OPTIONS

       -r --recursive
	   recusively copy directories (OPTIONAL)

       -L --localdir
	   output directory for remote file copies

       -h --hosts
	   hosts file (each line "host[:port] [user]")

       -l --user
	   username (OPTIONAL)

       -p --par
	   max number of parallel threads (OPTIONAL)

       -o --outdir
	   output directory for stdout files (OPTIONAL)

       -e --errdir
	   output directory for stderr files (OPTIONAL)

       -t --timeout
	   timeout (secs) (-1 = no timeout) per host (OPTIONAL)

       -O --options
	   SSH options (OPTIONAL)

       -v --verbose
	   turn on warning and diagnostic messages (OPTIONAL)

EXAMPLE

       An example to copy /home/irb2/foo.txt from each host. Files gathered will be stored in /tmp/outdir/hostname/foo.txt.

	   # prallel-slurp -h hosts.txt -L /tmp/outdir -l irb2 
		    /home/irb2/foo.txt foo.txt

ENVIRONMENT

       All four programs take similar sets of options. All of these options can be set using the following environment variables:

       o   PSSH_HOSTS
       o   PSSH_USER
       o   PSSH_PAR
       o   PSSH_OUTDIR
       o   PSSH_VERBOSE
       o   PSSH_OPTIONS

SEE ALSO

       parallel-ssh(1), parallel-scp(1), parallel-nuke(1), parallel-rsync(1), ssh(1)

AUTHOR

       Brent N. Chun <bnc@theether.org>

COPYING

       Copyright: 2003, 2004, 2005, 2006, 2007 Brent N. Chun

NOTES

	1. bnc@theether.org
	   mailto:bnc@theether.org

								    03/30/2009							 PARALLEL-SLURP(1)