diff --git a/setup-apt-cacher-lxcs.sh b/setup-apt-cacher-lxcs.sh
index e1165ad..7c26184 100644
--- a/setup-apt-cacher-lxcs.sh
+++ b/setup-apt-cacher-lxcs.sh
@@ -1,4 +1,3 @@
-cat > /root/setup-apt-cacher-lxcs.sh <<'EOF'
 #!/usr/bin/env bash
 
 set -u
@@ -36,7 +35,6 @@ for CTID in $(pct list | awk 'NR>1 {print $1}'); do
         continue
     fi
 
-    # Detect operating system
     OS_ID=$(pct exec "$CTID" -- sh -c \
         '. /etc/os-release 2>/dev/null && echo "$ID"' \
         2>/dev/null || true)
@@ -54,14 +52,12 @@ for CTID in $(pct list | awk 'NR>1 {print $1}'); do
 
     echo "Configuring Apt-Cacher-NG..."
 
-    # Backup existing configuration if there is one
     pct exec "$CTID" -- sh -c "
         if [ -f '$PROXY_FILE' ]; then
             cp '$PROXY_FILE' '${PROXY_FILE}.backup-\$(date +%Y%m%d-%H%M%S)'
         fi
     "
 
-    # Create proxy configuration
     pct exec "$CTID" -- sh -c "cat > '$PROXY_FILE' <<'APTCONFIG'
 Acquire::http::Proxy \"http://${ACNG_SERVER}:${ACNG_PORT}\";
 Acquire::https::Proxy \"DIRECT\";
@@ -82,9 +78,8 @@ APTCONFIG
     if [[ "$RUN_UPDATE" =~ ^[Yy]$ ]]; then
         echo
         echo "Running apt update..."
-        pct exec "$CTID" -- apt-get update
 
-        if [[ $? -eq 0 ]]; then
+        if pct exec "$CTID" -- apt-get update; then
             echo "OK: apt update completed."
         else
             echo "WARNING: apt update failed in container $CTID."