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Need help export variable

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# 1  
Old 07-30-2013
Need help export variable
Hi,

Please find my code below.

Code:
ps -xef | grep  14766 | awk 'BEGIN{X[1]="java_home=";X[2]="weblogic_home="}
{for(i=1;i<=NF;i++){if($i ~ /-Dplatform\.home|java$/){split($i,P,"=");s=P[2]?P[2]:$i;print X[++a]""s}}}'
echo "java_home="$java_home
echo "weblogic_home="$weblogic_home

Output:

Quote:
java_home=/opt/app/d1grn1m1/app1/jdk150_07/bin/IA64N/java
weblogic_home=/opt/app/d1grn1m1/app1/bea/weblogic92
java_home=
weblogic_home=
Why does the java_home and weblogic_home show blank when echoed ?
# 2  
Old 07-30-2013
you can't export to a parent process, so the values set in awk (which are awk variables rather than the shell variables you're looking for) are not available when the script terminates.

however you could eval the output of the awk script
# 3  
Old 07-30-2013
Quote:
Originally Posted by Skrynesaver
you can't export to a parent process, so the values set in awk (which are awk variables rather than the shell variables you're looking for) are not available when the script terminates.

however you could eval the output of the awk script
Never used eval before. Can you let me know how eval can help export the values to the parent process ?
Last edited by mohtashims; 07-30-2013 at 07:26 AM..
# 4  
Old 07-30-2013
Code:
eval $(ps -xef | grep  14766 | awk 'BEGIN{X[1]="export java_home=";X[2]="export weblogic_home="}
{for(i=1;i<=NF;i++){if($i ~ /-Dplatform\.home|java$/){split($i,P,"=");s=P[2]?P[2]:$i;print X[++a]""s}}}')

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