ps -o pid,sess,cmd afx | grep -A20 cron
ps -o pid,sess,cmd afx | grep -A20 jenkins
ps -o pid,sess,cmd afx | grep -A20 java

Find a specific PID
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ps --headers aux | head -n 1; ps aux |  awk '$2 == [enter PID here] { print $0 }'

View a tree of processes
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pstree