Sun Java System Application Server Platform Edition 8.1 2005Q2 Update 2 Troubleshooting Guide

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## Description

Unexpected results are returned when setting variables in a command, such as:

    asadmin set name={$a-b}

In this case, `name` is set to `b`, not `{$a-b}` because the shell syntax `${a=b}` is interpreted as “if the variable `a` is unset, substitute the value `b`, otherwise substitute the value of `a`.” This is standard shell behavior. For example, consider the following:

    asadmin set default-config.http-service.http-listener.http-listener-1.port=
    ${http-listener-1-port}

In this case, `default-config.http-service.http-listener.http-listener-1.port` is set to `listener-1-port`, which is invalid.

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