diff --git a/pages/linux/pstree.md b/pages/linux/pstree.md
index 018b8fbb6d..f52b17253c 100644
--- a/pages/linux/pstree.md
+++ b/pages/linux/pstree.md
@@ -3,7 +3,7 @@
 > A convenient tool to show running processes as a tree.
 > More information: <https://manned.org/pstree>.
 
-- Display a tree of processes:
+- Display a tree of all processes (rooted at init):
 
 `pstree`
 
@@ -14,3 +14,15 @@
 - Display all process trees rooted at processes owned by specified user:
 
 `pstree {{user}}`
+
+- Display command line arguments:
+
+`pstree {{[-a|--arguments]}}`
+
+- Display children of a specified process:
+
+`pstree {{pid}}`
+
+- Display parents of a specified process:
+
+`pstree {{[-s|--show-parents]}} {{pid}}`