Use generic home directory reference from launch file
I am running a .bag file from a launch file but I want to make the filepath generic so other team members can run this launch file. So I have:
<launch>
<node pkg="rosbag" type="play" name="player" args="/home/jimbob/bagfiles/test.bag" />
</launch>
But not everyone on my team is named jimbob so I want to replace "/home/jimbob/" with maybe ${HOME} or something generic.
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