Fix bashism/non-POSIX usage of $UID.

[grml-network.git] / sbin / grml-pptp-inode

diff --git a/sbin/grml-pptp-inode b/sbin/grml-pptp-inode
index 2e6e5fa..abef059 100755 (executable)
--- a/sbin/grml-pptp-inode
+++ b/sbin/grml-pptp-inode
@@ -4,7 +4,6 @@
 # Authors:       grml-team (grml.org), (c) Andreas Gredler <jimmy@grml.org>
 # Bug-Reports:   see http://grml.org/bugs/
 # License:       This file is licensed under the GPL v2.
-# Latest change: Sam Jän 26 00:12:46 CET 2008 [mika]
 ################################################################################
 
 ################################################################################
@@ -15,10 +14,8 @@
 
 export LANG=C
 
-if [ "$UID" != 0 ]; then
-#  sudo $0
-#  exit
-echo foo
+if [ $(id -ru) -ne 0 ] ; then
+  echo 1>&2 "Error: please run this script with uid 0 (root)." ; exit 1
 fi
 
 if [ -z "$FORCE_OLD" ] ; then
@@ -48,7 +45,7 @@ EOF
 echo "${VPNUSERNAME} XDSL ${VPNPASSWORD} *" >> /etc/ppp/pap-secrets
 chmod 0600 /etc/ppp/pap-secrets
 
-echo -e "#!/bin/sh\nLANG=C\nVPNSERVER=\"${VPNSERVER}\"\n" > /etc/init.d/pptp
+printf "#!/bin/sh\nLANG=C\nVPNSERVER=\"${VPNSERVER}\"\n" > /etc/init.d/pptp
 
 cat >> /etc/init.d/pptp << "EOF"