backup.in: check if process which wrote pid file is actually (still) running

1 files changed, 1 insertions, 1 deletions

diff --git a/backup.in b/backup.in
index ca4c1ae..7497be4 100755
--- a/backup.in
+++ b/backup.in
@@ -150,7 +150,7 @@ if ${seldom}; then
     fi
   done
 fi
-[ -e "${pidFile}" ] && exit 5
+[ -s "${pidFile}" ] && kill -0 $(cat "${pidFile}") 2>/dev/null && exit 5
 
 echo $$ > "${pidFile}"