Hi All,
Needa little help with sed and awk.

I have a file which contains password, Following is the sample:

<user username="tomcat" password="tomcat" roles="tomcat"/>
<user username="role1" password="tomcat" roles="role1"/>
<user username="both" password="tomcat" roles="tomcat,role1"/>
<user username="admin" password="admin" roles="admin,manager"/>

I need to pick up tomcat and admin values , basically what ever comes in " " after the word password, and replace it with some other text, say abcd.

Can someone please help me.