example/publish_config.py
#!/usr/bin/env python
import sys
import rospy
import std_msgs.msg as sm
rospy.init_node('example')
with open(sys.argv[1]) as f:
data = sm.String(data=f.read())
pub = rospy.Publisher('/ez_interactive_marker/update_config',
sm.String, queue_size=1, latch=True)
pub.publish(data)
rospy.sleep(5.0)