How do I grant sudo privileges to an existing user
sudo usermod -a -G sudo username
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Use pkill -f, which matches the pattern for any part of the command line
pkill -f my_pattern
How To Use Top, Netstat, Du, & Other Tools to Monitor Server Resources
https://www.digitalocean.com/community/articles/how-to-use-top-netstat-du-other-tools-to-monitor-server-resources