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I would like to use the output of a command in a launch file.
Think of the back quote notatie is the shell: hostname
So for example something like
<arg name="robotname" default="`hostname`" />
With the idea that the value of robotname is the hostname of the machine.
How could this functionality be achieved?
Thanks in advance, Sietse
You would need to write this yourself.
Currently, you can only get environment variables, which would work for the hostname
<arg name="robotname" default="$(env HOSTNAME)/>
The wiki page states that (for kinetic) eval
allows to evaluate arbitrary complex python expressions
but I don't know what this actually means. Maybe this would allow you to work a way around this.
Can you pass the output in through an arg somehow?
Asked: 2016-10-07 07:26:57 -0500
Seen: 217 times
Last updated: Oct 07 '16
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