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Full Discussion: Get first column from a huge string ..!!
Top Forums Shell Programming and Scripting Get first column from a huge string ..!! Post 302388434 by ak835 on Wednesday 20th of January 2010 11:04:10 AM
Old 01-20-2010
Bug
dodge this....!!

Code:
0 0 root  29040 1 0 59 20330440311536 30000c031dc S ? 919:55 /global/site/vendor/WAS/WebSphere7/AppServer/java/bin/java -XX:+UnlockDiagnosticVMOptions -Dwas.status.socket=47077 -XX:+UnsyncloadClass -XX:MaxPermSize=256m -Declipse.security -Dosgi.framework.extensions=com.ibm.ws.eclipse.adaptors -Dosgi.install.area=/global/site/vendor/WAS/WebSphere7/AppServer -Dosgi.configuration.area=/global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01/configuration -Djava.awt.headless=true -Djava.nio.channels.spi.SelectorProvider=sun.nio.ch.PollSelectorProvider -Xbootclasspath/p:/global/site/vendor/WAS/WebSphere7/AppServer/java/jre/lib/ext/ibmorb.jar:/global/site/vendor/WAS/WebSphere7/AppServer/java/jre/lib/ext/ibmext.jar -classpath /global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01/properties:/global/site/vendor/WAS/WebSphere7/AppServer/properties:/global/site/vendor/WAS/WebSphere7/AppServer/lib/startup.jar:/global/site/vendor/WAS/WebSphere7/AppServer/lib/bootstrap.jar:/global/site/vendor/WAS/WebSphere7/AppServer/lib/jsf-nls.jar:/global/site/vendor/WAS/WebSphere7/AppServer/lib/lmproxy.jar:/global/site/vendor/WAS/WebSphere7/AppServer/lib/urlprotocols.jar:/global/site/vendor/WAS/WebSphere7/AppServer/deploytool/itp/batchboot.jar:/global/site/vendor/WAS/WebSphere7/AppServer/deploytool/itp/batch2.jar:/global/site/vendor/WAS/WebSphere7/AppServer/java/lib/tools.jar -Dibm.websphere.internalClassAccessMode=allow -Xms50m -Xmx256m -Dws.ext.dirs=/global/site/vendor/WAS/WebSphere7/AppServer/java/lib:/global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01/classes:/global/site/vendor/WAS/WebSphere7/AppServer/classes:/global/site/vendor/WAS/WebSphere7/AppServer/lib:/global/site/vendor/WAS/WebSphere7/AppServer/installedChannels:/global/site/vendor/WAS/WebSphere7/AppServer/lib/ext:/global/site/vendor/WAS/WebSphere7/AppServer/web/help:/global/site/vendor/WAS/WebSphere7/AppServer/deploytool/itp/plugins/com.ibm.etools.ejbdeploy/runtime -Dderby.system.home=/global/site/vendor/WAS/WebSphere7/AppServer/derby -Dcom.ibm.itp.location=/global/site/vendor/WAS/WebSphere7/AppServer/bin -Djava.util.logging.configureByServer=true -Duser.install.root=/global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01 -Djavax.management.builder.initial=com.ibm.ws.management.PlatformMBeanServerBuilder -Dwas.install.root=/global/site/vendor/WAS/WebSphere7/AppServer -Dpython.cachedir=/global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01/temp/cachedir -Djava.util.logging.manager=com.ibm.ws.bootstrap.WsLogManager -Dserver.root=/global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01 -Dcom.ibm.security.jgss.debug=off -Dcom.ibm.security.krb5.Krb5Debug=off -Djava.security.auth.login.config=/global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01/properties/wsjaas.conf -Djava.security.policy=/global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01/properties/server.policy com.ibm.wsspi.bootstrap.WSPreLauncher -nosplash -application com.ibm.ws.bootstrap.WSLauncher com.ibm.ws.runtime.WsServer /global/site/vendor/WAS/WebSphere7/AppServer/profiles/JobMgr01/config clmsd027JobMgrCell01 clmsd027JobMgr01 jobmgr

I have written code like this:

Code:
A=$(/usr/ucb/ps -alxww | nawk '$2 != "UID" { printf("%s %s ",$1,$2);system("getent passwd "$2"| sed s/:.*$// | tr -d \\\\n");$1=""; $2=""; print $0 }$2 == "UID" { $2="UID USER"; print }'|nawk -F' ' '{ if($4 == "29040"){substr("^    ","");print}}')

B=$(echo "$A" |nawk '{print substr($0,index($0,":")+3,length($0))}'|nawk -F ' ' '{print $1}')

C=$(dirname "$B")

if [ $C = "." ]
then
echo ""
else
echo $C
fi

no error...my engine simply got exhausted ...i am not sure if its bcoz of string size or i have written something wrong above [though it works fine now for the earlier huge string i had pasted ]


give me something which will give me first column ,irrespective of the string length,size etc....

help me out guys !!



Regards
Abhi
 

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