Which command allows you to display a treelike hierarchy of processes?>

The command that allows you to display a treelike hierarchy of processes is 'pstree'. This command specifically organizes the output in a tree-like format, clearly showing the parent-child relationships between processes. This makes it easy to visualize how processes are related to one another, which is particularly useful when managing system resources or troubleshooting process issues.

While there are other commands like 'top', 'ps', and 'htop' that provide process information, they do not structure the output in a hierarchical tree format. 'top' provides a dynamic, real-time view of processes along with system resource usage but lists processes in a flat format. 'ps' displays a snapshot of processes without showing the hierarchical relationships, and 'htop', while it does offer a more user-friendly interface with color coding and the ability to manage processes interactively, also does not present the information in a treelike structure. Hence, 'pstree' is the most appropriate choice for this specific requirement.