i am new to bash script. I am making a script to calculate cpu usage. So what I am doing is calculating cpu usage and comparing with a predefined value i.e threshold value. But my if condition is always going wrong. Please help me to correct my script.
#!/bin/bash #checking the cpu usage cpu_usage=$( mpstat | awk '$12 ~ /[0-9.]+/ { print 100 - $12 }') cpu_threshold=1.00 if [ $cpu_usage > $cpu_threshold ] ; then echo "The CPU utilization is above threshold : $cpu_usage %" else echo "The CPU utilization is below threshold : $cpu_usage %" fi
Please do check the above script in bash beacause I have tried many ways but always if condition is giving wrong output.
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Answer
@Ankit: Try: changing if [ $cpu_usage > $cpu_threshold ]
to if [[ $cpu_usage > $cpu_threshold ]]