Need help with a simple script for filesystems. 3

[lblauen]

I need someones help. I need a small script that I would run in cron to check filesystems using the df command and if a filesystem is above say 80% put that information in a file that I can email out. But I also need to tell the script to ignore some of the filesystems cause I don't care how full they get.

/dev/hd4 131072 106916 19% 2966 5% /
/dev/hd2 2654208 519648 81% 42513 7% /usr
/dev/hd9var 131072 44148 67% 954 3% /var
/dev/hd3 131072 98904 25% 300 1% /tmp
/dev/hd1 0 0 -1% - - /home
/dev/hd10opt 131072 20488 85% 2646 9% /opt
Like here I would what /usr in the file saying its 81% used but I can tell it to ignore /home and /opt
I would have the output file say something like this:

Following filesystems are getting full Please check.
/dev/hd2 2654208 519648 81% 42513 7% /usr

Can this be done if so how please. Thanks Lloyd

 

[Annihilannic]

You could just list the filesystems you are interested on the command line:

[tt]#!/bin/ksh
df -lk / /var /usr | awk '$5 > 80' > /tmp/df.$$
if [[ $(wc -l < /tmp/df.$$) -gt1) ]]
then
( echo &quot;Following filesystems are getting full, please check:&quot;
cat /tmp/df.$$ ) | mailx -s &quot;Full filesystems&quot; you@yourdomain.com
fi
rm -f /tmp/df.$$[/tt]

(not tested)

Annihilannic.

 

[lblauen]

This look's good for a start. I still need it to ignore certain filesystems. I was going to take this script and add checking for page space above say 80% and report it to. How can I add that to it.

 

[lblauen]

I need to modify it to something like this but it fails. I'm using AIX 5.1

#!/bin/ksh
D1=&quot;`hostname`&quot; # Want hostname in mail
df -Ik / /var /usr /opt | awk '$5 > 80' >> /tmp/check
#if [[ $(wc -l < /tmp/df.$$) -gt1) ]] this fails
I think we just need to check if the file is there. If it is
then we continue if not we stop.
then
echo &quot;Following filesystems are getting full on $D1, please check: >> /tmp/check
`mail -v -s &quot;Central Systems Notification&quot; you.domain.com </tmp/check
fi
rm -f /tmp/check # then remove file.

 

[lblauen]

#!/bin/ksh
D1=&quot;`hostname`&quot;
df -Ik / /var /usr /opt | awk '$5 > 80' >> /tmp/check
if [[ -e /tmp/check ]];
then
echo &quot;Following filesystems are getting full on $D1, please check:&quot; >>/tmp/check
`mail -v -s &quot;Central Systems Notification&quot; your@domain.com </tmp/check`
fi
rm -f /tmp/check

now I just need to add pagspace above 80%

 

[Annihilannic]

Sorry, typo. There's supposed to be a space between -gt and 1.

Also you said you still need it to ignore certain filesystems; but it will only list the filesystems on the df command line, so that should achieve what you want?

Alternatively if you want to use the script on a number of systems without changing it you could exclude them using the following:

[tt]#!/bin/ksh
df -lk | awk '$5 > 80 && $6 !~ &quot;^(/home|/opt)$&quot;' > /tmp/df.$$
if [[ &quot;$(wc -l < /tmp/df.$$)&quot; -gt 1 ]]
then
( echo &quot;Following filesystems are getting full, please check:&quot;
cat /tmp/df.$$ ) | mailx -s &quot;Full filesystems&quot; you@yourdomain.com
fi
rm -f /tmp/df.$$[/tt]

Annihilannic.

 

[aixmurderer]

Here is my script for AIX 5.1, modify to suit. I actually have 2 alerts and a reset level, this script will only alert once per level:

##########################################################
# Check file system for disk full and sends messages #
# #
# Parameters : $HOST = Message Header (Node id) #
# $LEVEL1 = level 1 alert (in %) #
# $LEVEL2 = level 2 alert (in %) #
# $RLEVEL = reset level (in %) #
# /tmp used for record keeping #
###########################################################
typeset -u HOST=`hostname`
LIST=&quot;tmp home var usr archive opt&quot;
SYSTIME=`date +&quot;%OH:%OM&quot;`
LEVEL1=80
LEVEL2=90
RLEVEL=79

for i in $LIST
do
df | grep $i > $i.z
sed '/tmp/q' $i.z > $i.x
sed -e 's/%//' $i.x > $i.y
XXX=`awk '{print $4}' $i.y`
LAST=`awk '{print $1}' /tmp/$i.last`

#
# send message level 1
#

if [ &quot;$XXX&quot; -ge &quot;$LEVEL1&quot; ] && [ &quot;$LAST&quot; -lt &quot;$LEVEL1&quot; ]
then
echo &quot;$SYSTIME : $HOST /$i $LEVEL1% Full!&quot;|mail -s $HOST help alert
echo $LEVEL1 > /tmp/$i.last
fi

#
# send message level 2
#

if [ &quot;$XXX&quot; -ge &quot;$LEVEL2&quot; ] && [ &quot;$LAST&quot; -eq &quot;$LEVEL1&quot; ]
then
echo &quot;$SYSTIME : $HOST /$i $LEVEL2% Full!!&quot;|mail -s $HOST help alert
echo $LEVEL2 > /tmp/$i.last
fi

#
# reset last
#

if [ &quot;$XXX&quot; -lt &quot;$RLEVEL&quot; ]
then
echo $XXX > /tmp/$i.last
fi

done


IBM Certified Confused - MQSeries
IBM Certified Flabbergasted - AIX 5 pSeries System Administration
MS Certified Windblows Rebooter

 

[lblauen]

Thank you for all the help. I now have reports coming in and letting me know when filespace is getting full. This is the best place to get help. Keep up the great work.

 

[lblauen]

Help. The script works great unless the file systems goes to 100% How can I fix it? Here is the command I used and its results. If set to 90% it won't report the filesystem full if I set it to 100% I get them all.

346: df -Ik / /var /usr /opt /tmp | awk '$5 > 90 '
[testdb2::root]:
347: df -Ik / /var /usr /opt /tmp | awk '$5 > 100 '
/dev/hd4 131072 39572 91500 31% /
/dev/hd9var 393216 78380 314836 20% /var
/dev/hd2 4063232 2338912 1724320 58% /usr
/dev/hd10opt 262144 64760 197384 25% /opt
/dev/hd3 196608 196596 12 100% /tmp

 

[Ygor]

Try....

df -Ik / /var /usr /opt /tmp |awk '{p=$5;sub(&quot;%$&quot;,&quot;&quot;,p)} int(p)>90'

 

[lblauen]

Thanks that fixed it right up. This is the right place for help.