From 76dacf8ce675c8dd705c6f1e142931898cc88da7 Mon Sep 17 00:00:00 2001
From: David Personette <dperson@gmail.com>
Date: Fri, 20 Jan 2017 16:44:05 -0500
Subject: [PATCH] samba.sh don't try to add a group if one isn't given

---
 samba.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/samba.sh b/samba.sh
index 49648e9..f557dce 100755
--- a/samba.sh
+++ b/samba.sh
@@ -109,7 +109,7 @@ timezone() { local timezone="${1:-EST5EDT}"
 #   id) for user
 # Return: user added to container
 user() { local name="${1}" passwd="${2}" id="${3:-""}" group="${4:-""}"
-    grep -q "^$group:" /etc/group || groupadd "$group"
+    [[ "$group" ]] && { grep -q "^$group:" /etc/group || groupadd "$group"; }
     useradd "$name" -M ${id:+-u $id} ${group:+-g $group}
     echo -e "$passwd\n$passwd" | smbpasswd -s -a "$name"
 }