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Full Discussion: Unix space checking script
Homework and Emergencies Homework & Coursework Questions Unix space checking script Post 302494037 by Scott on Friday 4th of February 2011 03:06:00 PM
Old 02-04-2011
I think you're doing great Smilie

There's a couple of things.

Code:
for dspace in `df -k /filesystem |tail -1 |awk '{print $1}'`

Your df here takes the last line (tail -1) and prints the first field (awk '{print $1}'. That should leave you with a single word, so the for-loop isn't really necessary.

And the output of df, which varies from system to system, probably wouldn't show the space free in the first field.

On my system (OS X), for example:
Code:
/Users/scott/scripts/tmp $ df -k .                           
Filesystem   1024-blocks      Used Available Capacity  Mounted on
/dev/disk0s2   976426672 838053612 138117060    86%    /

the available space would be in "$4", and the used space as a percentage in "$5".

You're also "catting" a couple of files in the else part of your if statement. Where do they come from?

Assuming that /usr/local/fswarn.txt exists, and that /usr/local/bin/exportwarning.txt should be /usr/local/bin/fswarning.txt (!), you could simplify that a bit.

Code:
fsfile=/tmp/fsspace.txt  # set it here, so I don't have to change it in more than one place
df -k $1 > $fsfile
dspace=$(tail -1 $fsfile | awk '{print 100-$5}')  #100% - % used = % available
if [ $dspace -lt $2 ]; then
  echo "$dspace % available"
else
   cat /usr/local/bin/fswarn.txt /tmp/fsspace | /usr/bin/mailx -s "FS exceeded $2% ....."  mymail@mydomain.tld
fi

It still needs work (primarily checking that the arguments are given, and valid, but I'm sure you can handle that Smilie
This User Gave Thanks to Scott For This Post:
 

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DEBCONF-MERGETEMPLATE(1)					      Debconf						  DEBCONF-MERGETEMPLATE(1)

NAME
debconf-mergetemplate - merge together multiple debconf template files SYNOPSIS
debconf-mergetemplate [options] [templates.ll ...] templates DESCRIPTION
Note: This utility is deprecated. You should switch to using po-debconf's po2debconf program. This program is useful if you have multiple debconf templates files which you want to merge together into one big file. All the specified files will be read in, merged, and output to standard output. This can be especially useful if you are dealing with translated template files. In this case, you might have your main template file, plus several other files provided by the translators. These files will have translated fields in them, and maybe the translators left in the english versions of the fields they translated, for their reference. So, you want to merge together all the translated templates files with your main templates file. Any fields that are unique to the translated files need to be added in to the correct templates, but any fields they have in common should be superseded by the fields in the main file (which might be more up-to-date). This program handles that case properly, just list each of the translated templates files, and then your main templates file last. OPTIONS
--outdated Merge in even outdated translations. The default is to drop them with a warning message. --drop-old-templates If a translation has an entire template that is not in the master file (and thus is probably an old template), drop that entire template. SEE ALSO
debconf-getlang(1) AUTHOR
Joey Hess <joeyh@debian.org> 2012-09-10 DEBCONF-MERGETEMPLATE(1)
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