UNIX for Dummies Questions & Answers

See if this would do it for you:

Code:

FirstNumber=`uptime | sed -e 's/.*average://' -e 's/ //g' | cut -d',' -f1`
echo $FirstNumber

I am able to get the load average as u said. But i am not able to compare to a number. When i give like

FirstNumber=`uptime | sed -e 's/.*average://' -e 's/ //g' | cut -d',' -f1`
echo $FirstNumber

if [ $FirstNumber -gt 77 ]; then
echo "Greater than 77"
else
echo "Less or equal to 77"
fi


I get an error

0.34
./test2: line 3: [: 0.34: integer expression expected
Less or equal to 77


I think it needs to converted to an integer

Jibu,
Shell does not handle arithmetics nor comparisons with decimal numbers.
What other value do you want to compare it with?

I have found a way to do it. I know this is not the right way. But it works!!!!

uptime|gawk -F" " '{ print $8 }'|gawk -F , '{ print $1 }'|gawk -F . '{ print $1 }'> load
while read Inbr
do
echo $Inbr
if [ $Inbr -gt 77 ]; then
echo "Greater than 77"
else
echo "Less or equal to 77"
fi
done < load

Thanks for all the help!!!!

Jibu,
Again, shell does not handle arithmetics nor comparisons with decimal numbers.
The following code:

Code:

test_var() {
if [ $1 -lt 77 ]; then
 echo "$1 is less than 77"
else
 if [ $1 -eq 77 ]; then
   echo "$1 is equal 77"
 else
   echo "$1 is greater than 77"
 fi
fi
}

test_var 76.8
test_var 77.0
test_var 77.8

Gives the following output:
76.8 is less than 77
77.0 is equal 77
77.8 is equal 77

I'm clear with that part now. I removed the decimal points using gawk itself and made it an integer. Now my problem is that i have a file called flag which would be having the values 1 or 0 indicating that the server is already stopped or not so. It is used along with the if condition so that i need not stop an already stopped server. I need to get the value in the text file to a variable in the script. Is it possible????

Jibu,
This question has been answered explicitly in my #4 reply in this post.
*** Comment removed, rules 1 and 2 ---reborg