Bug#775608: shutdown-at-night: fails to shut down the system if gdm3 is used

[Wolfgang Schweer]

Package: shutdown-at-night
Version: 0.14
Severity: important
Tags: patch


The gdm3 greeter seems to be a special gnome-session running as a user 
with name '(unknown)'. shutdown-at-night uses 'who' to decide if users 
are still active but doesn't recognize this very case.

The patch has been tested and commited to git.

(wheezy is affected as well, version: 0.10+deb7u2)


diff --git a/shutdown-at-night b/shutdown-at-night
index 4427ef7..9411014 100755
--- a/shutdown-at-night
+++ b/shutdown-at-night
@@ -98,7 +98,7 @@ prepare_wakeonlan() {
 
 # Return true if local user is logged in, false otherwise
 is_local_user() {
-    if [ "$(who)" ] ; then
+    if [ "$(who | grep -v '\(unknown\)')" ] ; then
         return 0
     else
         return 1


Wolfgang

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