As a followup question to this one:I am downloading a file on multiple remote computers using curl command and am using the --limit-rate parameter to limit the download speed on the ones whose internet is being used:curl --limit-rate 10k -r 104857601-209715200 -o distro2.iso  'http://files.cdn/distro.iso'So I have to periodically monitor the internet usage of each computer (like every 5 seconds), and dynamically decrease the --limit-rate once the internet is being used by the user and increase it as the internet usage becomes idle. So the only thing that I need to know is whether the user of remote computer is using their internet (like browsing the web, or downloading a file). Is there any easy way to find out this? I think I have to obtain the PID of curl and exclude it from the list of applications that are using internet to find out whether any other application is using internet. I just don't know which command is better to use. Using commands that do not require sudo privileges are preferred. Any advice would be greatly appreciated! 
How to find out how much of internet bandwidth is used by all processes except one specific process?
curl;download;bandwidth