diff --git a/README.md b/README.md
index daea6bb..0edb720 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ working across different projects via [VisualMode](https://www.visualmode.dev/).
 
 For a steady stream of TILs, [sign up for my newsletter](https://visualmode.kit.com/newsletter).
 
-_1726 TILs and counting..._
+_1727 TILs and counting..._
 
 See some of the other learning resources I work on:
 
@@ -1756,6 +1756,7 @@ If you've learned something here, support my efforts writing daily TILs by
 - [Show A File Preview When Searching With FZF](unix/show-a-file-preview-when-searching-with-fzf.md)
 - [Show Disk Usage For The Current Directory](unix/show-disk-usage-for-the-current-directory.md)
 - [Show The Size Of Everything In A Directory](unix/show-the-size-of-everything-in-a-directory.md)
+- [Show Tree View Of Processes And Subprocesses](unix/show-tree-view-of-processes-and-subprocesses.md)
 - [Skip Paging If Output Fits On Screen With Less](unix/skip-paging-if-output-fits-on-screen-with-less.md)
 - [SSH Escape Sequences](unix/ssh-escape-sequences.md)
 - [SSH With Port Forwarding](unix/ssh-with-port-forwarding.md)
diff --git a/unix/show-tree-view-of-processes-and-subprocesses.md b/unix/show-tree-view-of-processes-and-subprocesses.md
new file mode 100644
index 0000000..997ceff
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+++ b/unix/show-tree-view-of-processes-and-subprocesses.md
@@ -0,0 +1,36 @@
+# Show Tree View Of Processes And Subprocesses
+
+Though you can cobble together a command on a MacOS Unix system to output a
+hierarchical tree view of a parent process and its descendent subprocesses, it
+is easier to [`brew install pstree`](https://github.com/FredHucht/pstree) and
+use that.
+
+Here is what I see when I run it for a _pid_ that corresponds to a `tmux`
+session that I have running locally:
+
+```bash
+❯ pstree 61690
+-+= 61690 lastword tmux new-session -d -s TIL -c /Users/lastword/dev/jbranchaud/til
+ |--= 63081 lastword /bin/zsh
+ |-+= 11428 lastword zsh
+ | \-+= 48511 lastword pstree 61690
+ |   \--- 48512 root ps -axwwo user,pid,ppid,pgid,command
+ |-+= 62345 lastword zsh
+ | \--= 06031 lastword claude
+ |--= 62364 lastword /bin/zsh
+ |-+= 62373 lastword zsh
+ | \--= 64407 lastword ssh my-app-staging
+ |-+= 61115 lastword /bin/zsh
+ | \-+= 61579 lastword overmind start -f Procfile.dev
+ |   \--- 61586 lastword tmux -C -L overmind-my-app-abc123 new -n web -s my-app -P -F %overmind-process #{pane_id} web #{pane_pid} /var/folders/zc/abc123/T/overmin
+ |--= 52237 lastword /bin/zsh
+ |--= 82608 lastword /bin/zsh
+ \--= 10796 lastword /bin/zsh
+```
+
+I was looking for a frozen `claude` process that was part of this session. And I
+found it about halfway down that list -- `06031`. Now I can run `kill` on that
+process as needed.
+
+For some additional context, I initially found the _pid_ for the `tmux` session
+by running `ps aux | grep tmux` and looking through those results.