From 58bb642f72314c44c14ba958d78eab64244968ed Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <shemminger@freekitty.localdomain>
Date: Tue, 9 May 2006 10:56:53 -0700
Subject: [PATCH] if you simply run `ifcfg iface`, you get: /sbin/ifcfg: line
 25: [: too many arguments /sbin/ifcfg: line 26: [: -ge: unary operator
 expected /sbin/ifcfg: line 27: [: -ge: unary operator expected /sbin/ifcfg:
 line 28: [: -ge: unary operator expected

might i suggest the attached patch
-mike
---
 ip/ifcfg | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ip/ifcfg b/ip/ifcfg
index ed6960f7..fb0fe51b 100644
--- a/ip/ifcfg
+++ b/ip/ifcfg
@@ -86,6 +86,10 @@ if [ "$peer" != "" ]; then
   fi
   pfx="$ipaddr peer $peer"
 else
+  if [ "$ipaddr" = "" ]; then
+    echo "Missing IP address argument." 1>&2
+    exit 1
+  fi
   if [ "$pfxlen" = "" ]; then
     ABCMaskLen $ipaddr
     pfxlen=$?