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Script that will be a cron job to export rrd files for cacti server

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# 1  
Old 10-17-2011
Script that will be a cron job to export rrd files for cacti server
I wrote a quick little script that will eventually end up as a cron job to export rrd files for my cacti server.

Here is the script:
Code:
#!/bin/bash

rm -rf /backup/cacti_xml/*
cd /var/www/html/rra
ls -1 *.rrd | awk '{print "rrdtool dump "$1" > /backup/cacti_xml/"$1".xml"}' | sh -x

Is there a better way to do this? I wand to dump the rrd files in /var/www/html/rra and have them written in /backup/cacti_xml. This script works now, but I'm sure it's not the best way to do it.

Any recommendations?
# 2  
Old 10-17-2011
Quote:
Originally Posted by TheBigAmbulance
I wrote a quick little script that will eventually end up as a cron job to export rrd files for my cacti server.

Here is the script:
Code:
#!/bin/bash
 
rm -rf /backup/cacti_xml/*
cd /var/www/html/rra
ls -1 *.rrd | awk '{print "rrdtool dump "$1" > /backup/cacti_xml/"$1".xml"}' | sh -x

Is there a better way to do this? I wand to dump the rrd files in /var/www/html/rra and have them written in /backup/cacti_xml. This script works now, but I'm sure it's not the best way to do it.

Any recommendations?

You may want to put in some checks like
1) check to see if the /backup/cacti_xml directory exist
2) check to see if the /var/www/html/rra directory exist
3) Also, you may want to dump your output into a log file.
# 3  
Old 10-17-2011
Code:
for FILE in *.rrd
do
        rrdtool dump "$FILE" > "/path/to/$FILE.xml"
done

# 4  
Old 10-17-2011
Thanks for the replies.

the problem I end up with is that if I use a *.rrd, the source directory becomes part of the $FILE.

Code:
/backup/cacti_xml.sh: line 9: /backpu/cacti_xml//var/www/html/rra/rg100_traffic_in_1108.rrd.xml: No such file or directory

That is why I was thinking of cleaning up the whole 'cd' to directory, and then do stuff. I don't think it's necessary, and I don't know how to strip the /var/www/html/rra out of the $FILE variable so that when it writes the xml to /backup/cacti_xml, it won't include all of this information.
# 5  
Old 10-17-2011
Quote:
Originally Posted by TheBigAmbulance
Thanks for the replies.

the problem I end up with is that if I use a *.rrd, the source directory becomes part of the $FILE.

Code:
/backup/cacti_xml.sh: line 9: /backpu/cacti_xml//var/www/html/rra/rg100_traffic_in_1108.rrd.xml: No such file or directory

That is why I was thinking of cleaning up the whole 'cd' to directory, and then do stuff. I don't think it's necessary, and I don't know how to strip the /var/www/html/rra out of the $FILE variable so that when it writes the xml to /backup/cacti_xml, it won't include all of this information.
In that case do this.
Code:
for FILE in `cd sourceDir ; ls -1 *.rrd`
do
        rrdtool dump "$FILE" > "/path/to/$FILE.xml"
done

Moderator's Comments:
Mod Comment
Please use code tags when posting data and code samples!
Last edited by vgersh99; 10-17-2011 at 01:13 PM.. Reason: code tags, please!
# 6  
Old 10-18-2011
ls -1 is redundant, ls always prints single-column output when reporting to anything except a terminal.
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