diff --git a/pages/common/$.md b/pages/common/$.md
index 35e4896f87..ced2c37e53 100644
--- a/pages/common/$.md
+++ b/pages/common/$.md
@@ -11,9 +11,9 @@
 
 `${{VARIABLE}}`
 
-- Print the exit status of the previous command:
+- Print the PID or the exit status of the previous command:
 
-`echo $?`
+`echo {{$!|$?}}`
 
 - Print a random number between 0 and 32767: