Thanks John, worked perfectly. Can you explain a little what /%.*/ is doing or tell me what it is so I can do some reading.
Bobby Bauer Center for Information Technology National Institutes of Health Bethesda, MD 20892-5628 301-594-7474 -----Original Message----- From: McKown, John [mailto:[email protected]] Sent: Wednesday, December 08, 2010 2:59 PM To: [email protected] Subject: Re: Need a little help with a Linux script 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 > > > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO > LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
