The pstree command in Linux and Unix displays a tree of processes on the system, showing the relationship between parent and child processes. Here are some examples of how to use the pstree command:
- Display the entire process tree:
pstree
- Display the process tree for a specific user:
pstree -u [username]
- Display the process tree with process IDs:
pstree -p
- Display the process tree in ASCII art form:
pstree -a
Where [username] is the name of the user for whom you want to display the process tree.
The pstree command is a useful tool for visualizing the relationships between processes and understanding the structure of the system. It provides a high-level view of the processes running on the system, making it easier to identify potential performance bottlenecks or to troubleshoot problems.