function fdiff

diff --git a/bin/nb-install b/bin/nb-install
index e528246408256f0d8f23773c82329649049369a2..46bc25f884d52b0d700b24b92b1603d4e25c68fb 100755 (executable)
--- a/bin/nb-install
+++ b/bin/nb-install
@@ -28,7 +28,9 @@ function crond2tab() {
 }
 
 function fdiff() {
-  [ -n "$(diff -q $1 $2)" ] && return 0
+  [ -e "$1" ] || return 0
+  [ -e "$2" ] || return 0
+  [ -n "$(diff -q $1 $2 2>/dev/null)" ] && return 0
   return 1
 }
 
@@ -36,6 +38,7 @@ function fdiff() {
 # Cron
 #
 if [ -d /etc/cron.d ]; then
+
   if fdiff "$NB_ROOT/etc/cron/nb" "/etc/cron.d/nb"; then
     verbose "Install /etc/cron.d/nb"
     $install "$NB_ROOT/etc/cron/nb" /etc/cron.d/nb