How to change weblogic admin password?

step 1)
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export MW_HOME=/u01/Middleware
export DOMAIN_HOME=$MW_HOME/user_projects/domains/base_domain


step 2)
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Shut down the WebLogic domain.

$ $DOMAIN_HOME/bin/stopWebLogic.sh


step 3)
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Rename the data folder.

[fusion@wlsadmin security]$ pwd
/u01/Middleware/user_projects/domains/base_domain/servers/AdminServer/security
[fusion@wlsadmin security]$ ls -ld $DOMAIN_HOME/servers/AdminServer/data
drwxr----- 6 fusion dba 4096 Feb 22 20:29 /u01/Middleware/user_projects/domains/base_domain/servers/AdminServer/data
[fusion@wlsadmin security]$ mv $DOMAIN_HOME/servers/AdminServer/data $DOMAIN_HOME/servers/AdminServer/data-old
[fusion@wlsadmin security]$ ls -ld $DOMAIN_HOME/servers/AdminServer/data
ls: /u01/Middleware/user_projects/domains/base_domain/servers/AdminServer/data: No such file or directory
[fusion@wlsadmin security]$


step 4)
++++++++++
Set the environment variables.

$ . $DOMAIN_HOME/bin/setDomainEnv.sh

[fusion@wlsadmin security]$ . $DOMAIN_HOME/bin/setDomainEnv.sh
[fusion@wlsadmin base_domain]$


step 5)
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Reset the password using the following command. Remember to substitute the appropriate username and password.

$ cd $DOMAIN_HOME/security
$ java weblogic.security.utils.AdminAccount abdul weblogic123 .


[fusion@wlsadmin security]$ . $DOMAIN_HOME/bin/setDomainEnv.sh
[fusion@wlsadmin base_domain]$ cd $DOMAIN_HOME/security
[fusion@wlsadmin security]$  java weblogic.security.utils.AdminAccount abdul weblogic123 .
[fusion@wlsadmin security]$



step 6)
=========
Update the "$DOMAIN_HOME/servers/AdminServer/security/boot.properties" file with the new username and password. The file format is shown below.

username=<username>
password=<password>



[fusion@wlsadmin security]$ vi $DOMAIN_HOME/servers/AdminServer/security/boot.properties
[fusion@wlsadmin security]$ head  $DOMAIN_HOME/servers/AdminServer/security/boot.properties
# Generated by Configuration Wizard on Fri Feb 21 18:56:06 IST 2014
username=abdul
password=weblogic123
[fusion@wlsadmin security]$


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Start the WebLogic domain.
----------------------------------

$ $DOMAIN_HOME/bin/startWebLogic.sh


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Metalink id
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How to Change the WebLogic Server Administrator Password [ID 1082299.1]