if [ ${cpuutil/%.*/} -ge 75 ]; then
will drop the . and everthing after in ${cpuutil} if you're using BASH.
--
John McKown
Systems Engineer IV
IT
Administrative Services Group
HealthMarkets(r)
9151 Boulevard 26 * N. Richland Hills * TX 76010
(817) 255-3225 phone *
[email protected] * www.HealthMarkets.com
Confidentiality Notice: This e-mail message may contain confidential or
proprietary information. If you are not the intended recipient, please contact
the sender by reply e-mail and destroy all copies of the original message.
HealthMarkets(r) is the brand name for products underwritten and issued by the
insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake Life Insurance
Company(r), Mid-West National Life Insurance Company of TennesseeSM and The
MEGA Life and Health Insurance Company.SM
> -----Original Message-----
> From: Linux on 390 Port [mailto:[email protected]] On
> Behalf Of Bauer, Bobby (NIH/CIT) [E]
> Sent: Wednesday, December 08, 2010 1:41 PM
> To: [email protected]
> Subject: Need a little help with a Linux script
>
> I'm trying to write a little script and having trouble
> comparing integers and decimal numbers. The shell doesn't
> like it and I haven't been able to figure out how to get
> around it. Script is named zyx.
>
> 1 #!/bin/sh
> 2 ADMINA="[email protected]"
> 3 dt=`date '+%a %b %e %I:%M %p' `
> 4 svr=`hostname`
> 5 ALERT=75
> 6 mpstat | grep -i all |awk '{print $4}'|
> 7 while read output;
> 8 do
> 9 cpuutil=`(echo $output | awk '{ print $1}' | cut -d'%' -f1 )`
> 10 set -x
> 11 if [ "$cpuutil" -ge $ALERT ]; then
> 12 echo "CPU utilization has risen beyond the alert
> threshold on $svr at $dt"| mail -vs "Alert:- CPU utilization
> is hi gh on $svr at $dt" $ADMINA
> 13 fi
> 14 done
>
> xyz
> + '[' 3.19 -ge 75 ']'
> /usr/sbin/xyz: line 11: [: 3.19: integer expression expected
> + read output
>
> mpstat is returns 3.19 and I'm trying, on line 11, to compare
> that to ALERT which is set to 75. I think I need to strip off
> the decimal part of 3.19 but haven't found any way to do it.
>
>
> Bobby Bauer
> Center for Information Technology
> National Institutes of Health
> Bethesda, MD 20892-5628
> 301-594-7474
>
>
>
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>
>
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