Initial commit: KillSwitch CLI and systemd target

.gitignore

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+*.swp
+*.bak
+*.tmp

killsw

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+#!/bin/bash
+
+VERSION="1.0.0"
+
+cmd="$1"
+
+case "$cmd" in
+    stop)
+        systemctl stop killswitch.target
+        echo "Killswitch activated: all linked services have been stopped."
+        ;;
+    start)
+        systemctl start killswitch.target
+        echo "Killswitch deactivated: all linked services have been started."
+        ;;
+    status)
+        systemctl status killswitch.target
+        ;;
+    help|-h|--help)
+        cat << EOF
+KillSwitch CLI Tool - v$VERSION
+
+USAGE:
+    killsw <command>
+
+COMMANDS:
+    stop            Stop all services linked to killswitch.target
+    start           Start all services linked to killswitch.target
+    status          Show the current status of the killswitch target
+    -h, --help      Show this help message
+    -v, --version   Show version information
+
+ABOUT KILLSWITCH:
+    What it does:
+        Stops all services that are linked to 'killswitch.target'. This allows
+        you to perform an emergency stop or centralized management of multiple
+        services.
+
+    Why it's needed:
+        Useful for quickly stopping servers or services in case of maintenance,
+        emergency, or to prevent unsafe operations.
+
+    How to enable it on your services:
+        1) Create or edit your systemd service to link it to killswitch.target:
+            Add the following to your [Unit] section:
+                PartOf=killswitch.target
+        2) Optionally, enable the service to start at boot:
+            sudo systemctl enable <your-service>.service
+        3) Start/stop via this script:
+            killsw start
+            killsw stop
+EOF
+        ;;
+    -v|--version)
+        echo "KillSwitch CLI Tool version $VERSION"
+        ;;
+    *)
+        echo "Unknown command: $cmd. Use --help to see available commands."
+        ;;
+esac

killswitch.target

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+[Unit]
+Description=KillSwitch Target