TLDR
Enter a command. For example: eix, mkfs.btrfs, fail2ban client.

pstree

 
A convenient tool to show running processes as a tree. More information: https://manned.org/pstree.
 
  • Display a tree of processes:
     
    pstree
     
  • Display a tree of processes with PIDs:
     
    pstree -p
     
  • Display all process trees rooted at processes owned by specified user:
     
    pstree {{user}}

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