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# 1  
Old 01-03-2013
Bdf in HP-UX

Hi guys, I have to make an output of several databases we've got running on our system with the command bdf. This has to be done every 3 months. I want to put it in an scriptfile and trigger it in crontab. In the output it must display the differences in diskspace between these three monts. Any idea how to do this? I'm an newbie on hp-ux Smilie
# 2  
Old 01-03-2013
To schedule script every 3 months in crontab:
Code:
0 0 3,6,9,12 * * script

Run bdf, write to a file
Code:
bdf [filesystem] | awk 'NR>1&&NF==5' > out_$(date +%b)

Later you can read from files for each month and compute difference.
# 3  
Old 01-07-2013
Thx!

Is there a way to calculate the differences between this? I mean with a script.

Last edited by djmental; 01-09-2013 at 04:58 AM..
# 4  
Old 01-22-2013
Berkeley df can break the output in two lines,
even if the output is not connected to a terminal (e.g. to a pipe).
So it's safer to have
Code:
#!/bin/ksh -p
bdf | awk 'NR>1 && NF>=5 { print $(NF-1) }' > out_$(date +%b)

A post processor script (to be run in the directory with the 3 files) can look like this:
Code:
#!/bin/ksh -p
ls -rt |
while read file
do
 read val < $file
 val=${val%%%}
 if [ -z "$preval" ]
 then
  preval=$val
 else
  delta=$(($val - $preval))
  printf "%s: %d (%+d)\n" $file $val $delta
 fi
done


Last edited by MadeInGermany; 01-22-2013 at 09:06 AM..

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