From d2071090bccc43b8e554e31a512a097d9156e74a Mon Sep 17 00:00:00 2001
From: Martin Winkler <efelon@winklerfamilie.eu>
Date: Wed, 1 Jun 2022 14:52:44 +0200
Subject: [PATCH] Fix unbound variable errors

---
 seqs/coturn.sh      | 2 +-
 seqs/ebackup.sh     | 4 ++--
 seqs/element-web.sh | 6 +++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/seqs/coturn.sh b/seqs/coturn.sh
index 319a831..559d9ec 100755
--- a/seqs/coturn.sh
+++ b/seqs/coturn.sh
@@ -60,7 +60,7 @@ step_10() {
   local dnsUrl="46.182.19.48" #digitalcourage.de/support/zensurfreier-dns-server
   local dnsFallbackUrl="194.150.168.168" #dns.as250.net; Berlin/Frankfurt
   local lecho="info"
-  if [ "$1" == "-l" ]; then
+  if [ "${1:-}" == "-l" ]; then
     lecho="echo"
     shift
   fi
diff --git a/seqs/ebackup.sh b/seqs/ebackup.sh
index 12505be..5dce88a 100755
--- a/seqs/ebackup.sh
+++ b/seqs/ebackup.sh
@@ -178,8 +178,8 @@ step_7() {
 
 step_20_info() {
   shift
-  local ebuTarget=$EBU_TARGET
-  [ ! -z "$1" ] && ebuTarget="$1"
+  local ebuTarget="${EBU_TARGET:-}"
+  [ ! -z "${1:-}" ] && ebuTarget="$1"
   if contextHelp; then
     echo "Status of (profile) [TARGET]"
   elif [ ! -z "$1" ]; then
diff --git a/seqs/element-web.sh b/seqs/element-web.sh
index c574d9a..7778cc1 100755
--- a/seqs/element-web.sh
+++ b/seqs/element-web.sh
@@ -24,7 +24,7 @@ step_18_alias() { echo "updatecheck"; }
 step_18() {
   shift
   local latestVersion=
-  if [ ! -z $1 ] ; then
+  if [ ! -z "${1:-}" ] ; then
     latestVersion="$1"
   else
     latestVersion=$(curl --silent "$latestUrl" | grep -Po '"tag_name": "v\K.*?(?=")')
@@ -74,7 +74,7 @@ step_20() {
 
 step_22_info() {
   shift
-  if [ -z $1 ] ; then
+  if [ -z "${1:-}" ] ; then
     echo -n "Get latest version from github"
     if ! contextHelp ; then
       echo ": $(curl --silent "$latestUrl" | grep -Po '"tag_name": "\K.*?(?=")')"
@@ -89,7 +89,7 @@ step_22_alias() { echo "upgrade"; }
 step_22() {
   shift # don't need step number
   local latestVersion=
-  if [ ! -z $1 ] ; then
+  if [ ! -z "${1:-}" ] ; then
     latestVersion="$1"
   else
     latestVersion=$(curl --silent "$latestUrl" | grep -Po '"tag_name": "v\K.*?(?=")')