I am trying to run a jar with the log4j.xml file on the file system outside the jar like so:
java -jar MyJarName.jar -cp=/opt/companyName/pathToJar/ log4j.co
Have you tried java -Dlog4j.configuration=/path/to/log4j.xml -jar
java -Dlog4j.configuration=/path/to/log4j.xml -jar