diff --git a/pages/common/$.md b/pages/common/$.md
index 4b4816b261..2b1a8074de 100644
--- a/pages/common/$.md
+++ b/pages/common/$.md
@@ -7,6 +7,10 @@
 
 `echo ${{VARIABLE}}`
 
+- Run variable contents as a command:
+
+`${{VARIABLE}}`
+
 - Print the exit status of the previous command:
 
 `echo $?`