total disk usage

[hpuxrox]

How would one total the kbytes used from the bdf command?

[Mel Burslan]

total=0
bdf | grep -v ^Filesystem | while read line
do
used=`echo $line | awk {'print $2'}`
(( total=$total+$used ))
done
echo $total " kilobytes of used disk space"

hope this is what you are looking for.

[Aussan]

you would add the used kb but bdf is not a good way to see the disk usage because nfs mount are not on your system and they should not count

lets say you wanted to find out how much disk usage is on vg00, you would do vgdisplay vg00 and you would take Alloc PE number * PE Size (Mbytes) that would give you how much disk is being used in MB

[Sandman!]

# bdf | awk '{tot+=$2}END{printf("total kbytes %d\n",tot)}'

[Court Campbell]

bdf | grep -v File | awk '{x=$2;x+=x}END{printf "%d\n",x}'

[Court Campbell]

scratch that it should be:

bdf | grep -v File | awk '{x+=$2}END{printf "%d\n",x}'

[A. Clay Stephenson]

First, look around on the Forums for one of Bill's scripts called bdfmegs because it's gonna fix a problem that you ain't thought of yet.

Then:
--------------------------------------------
#!/usr/bin/sh

build_A1()
{
echo "/^Filesystem/ { next}"
echo "{"
echo " v1 += (\$2 + 0); v2 += (\$3 + 0); v3 += (\$4 + 0)"
echo "}"
echo "END {"
echo " print v1,v2,v2"
echo "}"
return 0
} # build_A1

A1=$(build_A1)
bdfmegs | awk "${A1}"
--------------------------------------------
This will actually sum all three of the values but you should easily be able to adapt it to your exact needs.

[James R. Ferguson]

Hi:

# bdf|awk '{if (NR>1) {USED+=$3}};END{print USED}'

Regards!

...JRF...

[hpuxrox]

I am running into limitations in awk, it can not calculate that high of a number. Anyways to do it in perl or bc?

[Court Campbell]

arrgh, you stated used space.

bdf | grep -v File | awk '{x+=$3}END{printf "%d\n",x}'

[James R. Ferguson]

Hi (again):

OK, you would like Perl (I do too!):

# bdf|perl -nle 'if ($.>1) {@f=split;$used+=$f[2]};END{print $used}'

...Note that Perl numbers things 0-relative unlike 'awk' which counts its split fields as 1-relative. This too, skips the header line of the 'bdf'.

Regards!

...JRF...

[A. Clay Stephenson]

Dummy!

That's why I suggested bdfmegs and not only will it solve the problem you've now discovered; it will also solve the one that you haven't discovered.

Anyway, here's a copy of Bill's bdfmegs script.

[Sandman!]

What limitations? Could you post the output from the one-liners.

[hpuxrox]

.