where to add that command line so that every time i boot up it is executed.
More info is needed on this one, if you have a command you want to run as a daemon with root privileges, add it to "/etc/rc.local" script. This script is the last script that runs just before the GUI show up when you boot
If you want the script to start up on login and to run with logged in user privileges, go to "system settings -> system administration -> start up and shut down -> autostart" and add your script here
ps:
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