Change logs directory on Tomcat 5.5.26

[Philippe Couas]

Hi,
 
I want change logs directory on Tomcat 5.5.26 ?
I have tried without succes following command ?
Where is my mistake
Regards
Philippe
 
<Context path="/test" docBase="test" debug="0" reloadable="true" crossCont
ext="true" allowLinking="true" caseSensitive="false">

<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_info
dev_log." suffix=".txt" timestamp="true" directory="/var/tomcat/logs"/>

</Context>