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Top Forums Shell Programming and Scripting Explaination on export command Post 302929116 by chandana.hs on Thursday 18th of December 2014 04:29:13 AM
Old 12-18-2014
Thanks Ravinder. Smilie

Could you/Team explain on how the for loop is working in below code block?

Code:
for i in ${!SDV_*}; do         export $i     done

Regards,
Chandana

---------- Post updated at 02:59 PM ---------- Previous update was at 01:10 PM ----------

Thanks.

Yes, it seems i understand now.

Export helps to define a variable for the current and in its child sessions.

But we have to define/add it to bash_rc file for permanent for all the sessions(child or totally a fresh session).

Correct me if wrong.

Regards,
Chandana
 

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asadmin-unset(1AS)						   User Commands						asadmin-unset(1AS)

NAME
asadmin-unset, unset - removes one or more variables from the multimode environment SYNOPSIS
unset env_var [env_var]* Removes one or more variables you set for the multimode environment. The variables and their associated values will no longer exist in the environment. OPERANDS
env_var environment variable to be removed. Example 1: Using unset to remove environment variables asadmin> export AS_ADMIN_HOST=bluestar AS_ADMIN_PORT=8000 AS_ADMIN_USER=admin AS_ADMIN_PASSWORD=password asadmin> export AS_ADMIN_PREFIX=server1.jms-service asadmin> export AS_ADMIN_HOST=bluestar AS_ADMIN_PORT=8000 AS_ADMIN_USER=admin AS_ADMIN_PASSWORD=******** AS_ADMIN_PREFIX=server1.jms-service asadmin> unset AS_ADMIN_PREFIX asadmin> export AS_ADMIN_HOST=bluestar AS_ADMIN_PORT=8000 AS_ADMIN_USER=admin AS_ADMIN_PASSWORD=******** Using the export command without the argument lists the environment variables that are set. Notice the AS_ADMIN_PREFIX is not in the envi- ronment after running the unset command. EXIT STATUS
0 command executed successfully 1 error in executing the command asadmin-export(1AS), asadmin-multimode(1AS) J2EE 1.4 SDK March 2004 asadmin-unset(1AS)
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