From 63f8fde8dd02af88b2ef5de7d0776ca52acdbdac Mon Sep 17 00:00:00 2001
From: Max Mehl <mail@mehl.mx>
Date: Wed, 13 Dec 2023 11:56:18 +0100
Subject: [PATCH] fix unbound variable error

---
 uberspace-backup.sh | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/uberspace-backup.sh b/uberspace-backup.sh
index 670b395..653ea85 100755
--- a/uberspace-backup.sh
+++ b/uberspace-backup.sh
@@ -29,8 +29,6 @@ else
   SSH_KEY=~/.ssh/id_rsa
 fi
 
-ARG1="$1"
-
 # Get current date
 DATE=$(date +"%Y-%m-%d_%H-%M")
 LOG="$CURDIR"/backup.log
@@ -54,8 +52,8 @@ while read -r line; do
 
   RHOST=$(echo "$line" | cut -d";" -f1 | trim)
 
-  # Jump to next line if this line's host does not match host of ARG1 (if given)
-  if [[ "${ARG1}" != "" ]] && [[ "${ARG1}" != "${RHOST}" ]]; then
+  # Jump to next line if this line's host does not match host of first argument (if given)
+  if [[ "${1-}" != "" ]] && [[ "${1-}" != "${RHOST}" ]]; then
     continue
   fi
   # Task ssh-checker.sh to check this host