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round decimal values and use in loops

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# 1  
Old 10-07-2010
round decimal values and use in loops
i have a file in which 3 values are stored like --4.72 4.42 3.86
what i wanna do is that take read each value and compare with a fixed value say 5 but cant do so as i am getting an error for the same.

please check the code

Code:
cat /home/nsadm/auto/Logging/uptime.txt| while read a b c
do
if [ $a -gt 5 ]  then
  echo "LOAD AVG is high in MUM for --Command--upime" 
else
echo "LOAD AVG is normal in MUM"
fi 
done

Please help how can i round the value and compare hrough the loops
Thanxx in advance

Regards

G.C
Last edited by Franklin52; 10-07-2010 at 03:39 AM.. Reason: Please use code tags, thank you!
# 2  
Old 10-07-2010
You can round a value with something like:
Code:
value=$(echo $a | awk '{printf("%d\n",$0+=$0<0?-0.5:0.5)}')

# 3  
Old 10-07-2010
Better to avoid cat to read a file.
For the integer part you can use this ${a%.*}
So your script becomes
bash code:
  1. while read a b c
  2. do
  3.    if &#91; ${a%.*} -gt 5 ]
  4.    then   echo "LOAD AVG is high in MUM for --Command--upime" 
  5.    else   echo "LOAD AVG is normal in MUM"
  6.    fi 
  7. done </home/nsadm/auto/Logging/uptime.txt
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