asked on

Linux Filesystem monitor script

I have a Filesystem monitor script which is not quite working I know there is a problem with the syntax but dont know where can someone help me fix this, or If anyone has a better script can you please share it with me

Here is the script

#!/bin/ksh
df -H | grep -vE '^Filesystem|dev|prd|tmpfs|cdrom|home' | while read output;
do
  echo $output
  value=$(echo $output | awk '{ print $1}' | cut -d'%' -f1  )
  fs=$(echo $output | awk '{ print $2 }' )
  if [ $value -ge 85 ]; then
    echo "Running out of space \"$fs ($value%)\" on $(hostname) as on $(date)" |
     mail -s "Alert: Almost out of disk space $value%" a6179p@att.net
  fi
done

Open in new window

Here is the output when I execute

# ./fs.sh
2.6G 1.9G 520M 79% /
./fs.sh: line 7: [: 2.6G: integer expression expected
976M 206M 720M 23% /opt
./fs.sh: line 7: [: 976M: integer expression expected
455M 37M 395M 9% /opt/netiq
./fs.sh: line 7: [: 455M: integer expression expected
1.6G 314M 1.2G 22% /var
./fs.sh: line 7: [: 1.6G: integer expression expected
976M 19M 907M 2% /tmp
./fs.sh: line 7: [: 976M: integer expression expected
520M 130M 364M 27% /opt/splunkforwarder
./fs.sh: line 7: [: 520M: integer expression expected

and my # df -H
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/rootvg-rootvol
2.6G 1.9G 520M 79% /
/dev/mapper/rootvg-optvol
976M 206M 720M 23% /opt
/dev/mapper/rootvg-netiq
455M 37M 395M 9% /opt/netiq
/dev/mapper/rootvg-varvol
1.6G 314M 1.2G 22% /var
/dev/mapper/rootvg-tmpvol
976M 19M 907M 2% /tmp
/dev/sda1 194M 28M 156M 16% /boot
tmpfs 4.2G 0 4.2G 0% /dev/shm
/dev/mapper/rootvg-splunkforwarder
520M 130M 364M 27% /opt/splunkforwarder
prddmv03-20.corp.erac.com:/home02/e200mp
731G 610G 121G 84% /home/e200mp
prddmv03-20.corp.erac.com:/home02/e515kr
731G 610G 121G 84% /home/e515kr

ASKER CERTIFIED SOLUTION

ozo

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

aanya247

ASKER

Sorry I gave you the wrong script... it is

#!/bin/ksh
df -H | grep -vE '^Filesystem|prd|tmpfs|cdrom|home' | awk '{ print $5 " " $1 }'| while read output;
do
  echo $output
  value=$(echo $output | awk '{ print $1}' | cut -d'%' -f1  )
  fs=$(echo $output | awk '{ print $2 }' )
  if [ $value -ge 85 ]; then
    echo "Running out of space \"$fs ($value%)\" on $(hostname) as on $(date)" |
     mail -s "Alert: Almost out of disk space $value%" a6179p@att.net
  fi
done

Open in new window

So I know where the problem is...When I run

# df -H | grep -vE '^Filesystem|prd|tmpfs|cdrom|home'

The output is displayed in 2 lines for example for root it is displayed in 2 lines like

/dev/mapper/rootvg-rootvol
2.6G 2.3G 117M 96% /

Instead my script will work if the out put is on the same line like

/dev/mapper/rootvg-rootvol 2.6G 2.3G 117M 96% /
/dev/mapper/rootvg-optvol 976M 206M 720M 23% /opt
/dev/mapper/rootvg-netiq 455M 37M 395M 9% /opt/netiq
/dev/mapper/rootvg-varvol 1.6G 605M 881M 41% /var
/dev/mapper/rootvg-tmpvol 976M 19M 907M 2% /tmp
/dev/sda1 194M 28M 156M 16% /boot
/dev/mapper/rootvg-splunkforwarder 520M 130M 364M 27% /opt/splunkforwarder

How do i format my script to get this desired output

SOLUTION

simon3270

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

aanya247

ASKER

Thank you, now looks like the output is right now, thanks all

aanya247

ASKER

I've requested that this question be closed as follows:

Accepted answer: 0 points for aanya247's comment #a39694764
Assisted answer: 100 points for ozo's comment #a39694712
Assisted answer: 400 points for simon3270's comment #a39694964

for the following reason:

script works perfectly fine

aanya247

ASKER

simon3270 syntax helped me fix the issue with the script, ozo helped me with a typo

aanya247

ASKER

simon3270 syntax helped me fix the issue with the script, ozo helped me with a typo