---Process Commands---

ps -ef | grep [h]ttpd | awk '{print $2}' | sudo xargs kill ##kill by process name rather than process ID, using brackets around the 'h' [h]ttpd will exclude the grep command that is searching for 'httpd'

ps -aux | grep -E 'apache|www-data|http' ##find processes owned by user apache, www-data, or http

ps auxfw ##show processes in a tree format

top ##shows running processes, ram and processor usage

htop ##better version of top, not installed by default, 'yum install htop'