Different log file... every node outputs its own log file separate from the
roslaunch one (http://www.ros.org/wiki/roscpp/Overview/Logging#Output).

Josh

On Sun, Jun 13, 2010 at 7:08 PM, Bill Morris <morris@ee.ccny.cuny.edu>wrote:

> On Sun, 2010-06-13 at 18:59 -0700, Josh Faust wrote:
> > The output will always go to the node's log file, even if you're not
> > running it through roslaunch.
>
> That is unclear from the documentation, also now that I'm looking at it
> I am pretty sure the logs end up in ~/.ros/log not $ROS_ROOT/log
>
> http://www.ros.org/wiki/roslaunch/XML/node
>
> output="log|screen"(optional)
>
>      * If 'screen', stdout/stderr from the node will be sent to the
>        screen. If 'log', the output will be sent to a log file in
>        $ROS_ROOT/log. The default is 'log'.
>
>
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