Using "jar" command to view the files inside a .jar file

$jar tvf nexus-bootstrap-2.8.0-05.jar
     0 Tue Apr 08 19:54:14 EDT 2014 META-INF/
   436 Tue Apr 08 19:54:12 EDT 2014 META-INF/MANIFEST.MF
     0 Tue Apr 08 19:54:12 EDT 2014 org/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/jetty/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/monitor/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/monitor/commands/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/log/
     0 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/jsw/
  2387 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/EnvironmentVariables.class
  6164 Tue Apr 08 19:54:12 EDT 2014 org/sonatype/nexus/bootstrap/jetty/JettyServer.class
   ....