BC calculation for floating (invalid arithmetic operator ) Post: 302976389

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Top Forums Shell Programming and Scripting BC calculation for floating (invalid arithmetic operator ) Post 302976389 by alvintiow on Wednesday 29th of June 2016 03:14:25 AM

06-29-2016

Registered User

Hi Aia,

It is SUSE SLEH 11, I am comparing the 'number'.

Hi Don,

1. The below code is the actual full code showing this error (line 15 and 19)

Code:

#!/bin/ksh
str1=`uptime | awk '{print $10}'| sed 's/,//'`
str2=`uptime | awk '{print $11}'| sed 's/,//'`
str3=`uptime | awk '{print $12}'| sed 's/,//'`
 echo $str1
echo $str2
echo $str3
#warn_level='$str1*1.03' | bc
warn_level=`echo "$str1*1.03"|bc`
crit_level=`echo "$str1*1.05"|bc`
#crit_level='$str1*1.05' | bc
 if [[ "$crit_level" -gt "$str2" || "$crit_level" -gt "$str3" ]]; then
        status=2
        statustxt="CPU load is critical - $str1"
 elif [[ "$warn_level" -gt "$str2" || "$warn_level" -gt "$str3" ]]; then
        status=1
        statustxt="CPU load is Warning - $str1"
else
        status=0
        statustxt="CPU load is normal, no spike - $str1"
fi
 echo "$status CPULOAD_spike  PERFDATA=$str1 $statustxt"

Code:

 /bin/ksh --version: version         sh (AT&T Research) 93u+ 2012-08-01

3. locale:

Code:

LANG=POSIX
LC_CTYPE=en_US.UTF-8
LC_NUMERIC="POSIX"
LC_TIME="POSIX"
LC_COLLATE="POSIX"
LC_MONETARY="POSIX"
LC_MESSAGES="POSIX"
LC_PAPER="POSIX"
LC_NAME="POSIX"
LC_ADDRESS="POSIX"
LC_TELEPHONE="POSIX"
LC_MEASUREMENT="POSIX"
LC_IDENTIFICATION="POSIX"
LC_ALL=

4. uptime

Code:

15:02pm  up 77 days  0:26,  1 user,  load average: 1.82, 1.89, 1.88

Below is the exactly output from the code

Code:

1.82
1.89
1.88
./CPULOAD: line 15: [[: 1.91: syntax error: invalid arithmetic operator (error token is ".91")
./CPULOAD: line 15: [[: 1.91: syntax error: invalid arithmetic operator (error token is ".91")
./CPULOAD: line 19: [[: 1.87: syntax error: invalid arithmetic operator (error token is ".87")
./CPULOAD: line 19: [[: 1.87: syntax error: invalid arithmetic operator (error token is ".87")
0 CPULOAD_spike  PERFDATA=1.82 CPU load is normal, no spike - 1.82

I removed the comma due to when

Code:

awk '{print $10}'

the output consists of comma

Code:

uptime | awk '{print $10}'

below is the output
1.84,

Code:

uptime | awk '{print $10}'| sed 's/,//'

below is the output
1.84

Last edited by RudiC; 06-29-2016 at 05:50 AM..

alvintiow

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