Update install.sh

install.sh

@@ -1,2 +1,35 @@
 # this script automaticly sets up the progam and makes it executeable.
 
+#!/usr/bin/env bash
+set -euo pipefail
+
+PREFIX_BIN="/usr/local/bin"
+SYSTEMD_DIR="/etc/systemd/system"
+
+REPO_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+
+main_script="$(find "$REPO_DIR" -maxdepth 1 -type f -name "killswitch*" ! -name "*.target" | head -n 1)"
+target_file="$(find "$REPO_DIR" -maxdepth 1 -type f -name "*.target" | head -n 1)"
+
+if [[ -z "${main_script:-}" ]]; then
+  echo "main script not found"
+  exit 1
+fi
+
+if [[ -z "${target_file:-}" ]]; then
+  echo "systemd target not found"
+  exit 1
+fi
+
+echo "installing cli"
+install -m 755 "$main_script" "$PREFIX_BIN/$(basename "$main_script")"
+
+echo "installing systemd target"
+install -m 644 "$target_file" "$SYSTEMD_DIR/$(basename "$target_file")"
+
+echo "reloading systemd"
+systemctl daemon-reload
+
+echo "done"
+echo "binary: $PREFIX_BIN/$(basename "$main_script")"
+echo "target: $SYSTEMD_DIR/$(basename "$target_file")"