I want to print disk space percentage, path and host for 100+ machines. I have created below script to do that. But it's just working for the first host not for the rest of all in the host list. I slimmed down the possibility of error is with executing raw SSH command. Pls suggest any alternative. Thanks.
#!/bin/bash
set -x
echo "starting..."
begin ()
{
threshold=60
while read host
do
finder
done <hosts.txt
}
finder ()
{
ssh ops@$host 'df -h' | grep -o '[0-9]\+%'| grep -o '[0-9]\+'| while read percent
do
if [ $percent -gt $threshold ]
then
path=`ssh ops@$host 'df -h' | tr -s " " | grep -oE "$percent% /[a-z]\+|$percent% /" | cut -d " " -f2`
echo "Alert! Time to wipe off! It is $percent% in \"$path\" at $host"
else
echo "Info: It is $percent in $path at $host"
fi
done
}
begin
It gives me result like this: Alert! Time to wipe off! It is 61% in "/" at 192.168.8.31
my hosts.txt looks like below:
192.168.8.31
192.168.7.41
192.168.7.42
192.168.8.32
So, in the script I'm executing df -h in each host via ssh and for each line of the df -h command I'm checking with the threshold value. If the condition is true alerting the guys, if not, just informing. Pls help me to understand what went wrong ? thanks :)
