1 files changed, 15 insertions, 0 deletions
diff --git a/README.md b/README.md
index 84d10d8..c44bff9 100644
--- a/README.md
+++ b/README.md
@@ -1161,3 +1161,18 @@ Rootly Powers and Processes
     ```
 
   e. Find entries that have no expiration date (needs /etc/shadow).
+
+    ```bash
+    #!/bin/bash
+
+    cd "..$(dirname $PWD)"
+
+    for i in `cat /etc/shadow`; do
+      login=$(echo $i | cut -d: -f1)
+      expiration=$(echo $i | cut -d: -f8)
+
+      if [ -z "$expiration" ]; then
+        echo $login: does not have an expiration date
+      fi
+    done
+    ```