2.6.8

changelog.md

@@ -1,5 +1,69 @@
 # Changelog
 
+## 2025-03-26 - 2.6.8 - fix(cli)
+Improve CLI formatting, refine debug option filtering, and remove unused dgram import in SNMP manager
+
+- Standardize whitespace and formatting in ts/cli.ts for consistency
+- Refine argument filtering for debug mode and prompt messages
+- Remove unused 'dgram' import from ts/snmp/manager.ts
+
+## 2025-03-26 - 2.6.7 - fix(setup.sh)
+Clarify net-snmp dependency installation message in setup.sh
+
+- Updated echo statement to indicate installation of net-snmp along with 2 subdependencies
+- Improves clarity on dependency installation during setup
+
+## 2025-03-26 - 2.6.6 - fix(setup.sh)
+Improve setup script to detect and execute npm-cli.js directly using the Node.js binary
+
+- Replace use of the npm binary with direct execution of npm-cli.js
+- Add fallback logic to locate npm-cli.js when not found at the expected path
+- Simplify cleanup by removing unnecessary PATH modifications
+
+## 2025-03-26 - 2.6.5 - fix(daemon, setup)
+Improve shutdown command detection and fallback logic; update setup script to use absolute Node/npm paths
+
+- Use execFileAsync to execute shutdown commands reliably
+- Add multiple fallback alternatives for shutdown and emergency shutdown handling
+- Update setup.sh to log the Node and NPM versions using absolute paths without modifying PATH
+
+## 2025-03-26 - 2.6.4 - fix(setup)
+Improve installation process in setup script by cleaning up package files and ensuring a minimal net-snmp dependency installation.
+
+- Remove existing package-lock.json along with node_modules to prevent stale artifacts.
+- Back up the original package.json before modifying it.
+- Create a minimal package.json with only the net-snmp dependency based on the backed-up version.
+- Use a clean install to guarantee that only net-snmp is installed.
+- Restore the original package.json if the installation fails.
+
+## 2025-03-26 - 2.6.3 - fix(setup)
+Update setup script to install only net-snmp dependency and create a minimal package-lock.json for better dependency control.
+
+- Removed full production dependency install in favor of installing only net-snmp@3.20.0
+- Added verification step to confirm net-snmp installation
+- Generate a minimal package-lock.json if one does not exist
+
+## 2025-03-26 - 2.6.2 - fix(setup/readme)
+Improve force update instructions and dependency installation process in setup.sh and readme.md
+
+- Clarify force update commands with explicit paths in readme.md
+- Remove existing node_modules before installing dependencies in setup.sh
+- Switch from 'npm ci --only=production' to 'npm install --omit=dev' with updated error instructions
+
+## 2025-03-26 - 2.6.1 - fix(setup)
+Update setup.sh to temporarily add vendor Node.js binary to PATH for dependency installation, log Node and npm versions, and restore the original PATH afterwards.
+
+- Temporarily prepend vendor Node.js binary directory to PATH to ensure proper npm execution.
+- Log Node.js and npm versions for debugging purposes.
+- Restore the original PATH after installing dependencies.
+
+## 2025-03-26 - 2.6.0 - feat(setup)
+Add --force update flag to setup script and update installation instructions
+
+- Implemented --force option in setup.sh to force-update Node.js binary and dependencies
+- Updated readme.md to document the --force flag and revised update steps
+- Modified ts/cli.ts update command to pass the --force flag to setup.sh
+
 ## 2025-03-26 - 2.5.2 - fix(installer)
 Improve Node.js binary detection, dependency management, and SNMPv3 fallback logic
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@serve.zone/nupst",
-  "version": "2.5.2",
+  "version": "2.6.8",
   "description": "Node.js UPS Shutdown Tool for SNMP-enabled UPS devices",
   "main": "dist/index.js",
   "bin": {

pnpm-lock.yaml

@@ -9,7 +9,7 @@ importers:
   .:
     dependencies:
       net-snmp:
-        specifier: ^3.20.0
+        specifier: 3.20.0
         version: 3.20.0
     devDependencies:
       '@git.zone/tsbuild':

readme.md

@@ -227,8 +227,19 @@ sudo nupst update
 This will:
 1. Pull the latest changes from the git repository
 2. Run the installation scripts
-3. Refresh the systemd service configuration
-4. Restart the service if it was running
+3. Force-update Node.js and all dependencies, even if they already exist
+4. Refresh the systemd service configuration
+5. Restart the service if it was running
+
+You can also manually run the setup script with the force flag to update Node.js and dependencies without updating the application code:
+
+```bash
+# If you're in the nupst directory:
+bash ./setup.sh --force
+
+# If you're in another directory, specify the full path:
+bash /opt/nupst/setup.sh --force
+```
 
 ## Security
 

setup.sh

@@ -2,6 +2,22 @@
 
 # NUPST Setup Script
 # Downloads the appropriate Node.js binary for the current platform
+# and installs production dependencies
+
+# Parse command line arguments
+FORCE_UPDATE=0
+
+for arg in "$@"; do
+  case $arg in
+    --force|-f)
+      FORCE_UPDATE=1
+      shift
+      ;;
+    *)
+      # Unknown option
+      ;;
+  esac
+done
 
 # Find the directory where this script is located
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
@@ -74,8 +90,9 @@ case "$OS" in
 esac
 
 # Check if we already have the Node.js binary
-if [ -f "$SCRIPT_DIR/vendor/$NODE_DIR/bin/node" ]; then
+if [ -f "$SCRIPT_DIR/vendor/$NODE_DIR/bin/node" ] && [ $FORCE_UPDATE -eq 0 ]; then
   echo "Node.js binary already exists for $OS-$ARCH. Skipping download."
+  echo "Use --force or -f to force update Node.js."
 else
   echo "Downloading Node.js v$NODE_VERSION for $OS-$ARCH..."
   
@@ -222,25 +239,90 @@ echo "dist_ts directory successfully downloaded from npm registry."
 # Make launcher script executable
 chmod +x "$SCRIPT_DIR/bin/nupst"
 
-# Install production dependencies
-echo "Installing production dependencies..."
-"$SCRIPT_DIR/vendor/$NODE_DIR/bin/npm" --prefix "$SCRIPT_DIR" ci --only=production --no-audit --no-fund
+# Set up Node.js binary path
+NODE_BIN_DIR="$SCRIPT_DIR/vendor/$NODE_DIR/bin"
+NODE_BIN="$NODE_BIN_DIR/node"
+NPM_CLI_JS="$NODE_BIN_DIR/../lib/node_modules/npm/bin/npm-cli.js"
 
-if [ $? -ne 0 ]; then
-  echo "Warning: Failed to install dependencies with 'npm ci'. Trying 'npm install'..."
-  "$SCRIPT_DIR/vendor/$NODE_DIR/bin/npm" --prefix "$SCRIPT_DIR" install --only=production --no-audit --no-fund
+# Ensure we have executable permissions
+chmod +x "$NODE_BIN"
 
-  if [ $? -ne 0 ]; then
-    echo "Error: Failed to install dependencies. NUPST may not function correctly."
-    echo "You can try to install dependencies manually by running:"
-    echo "cd $SCRIPT_DIR && npm install --only=production"
+# Make sure the npm-cli.js exists
+if [ ! -f "$NPM_CLI_JS" ]; then
+  # Try to find npm-cli.js
+  NPM_CLI_JS=$(find "$NODE_BIN_DIR/.." -name "npm-cli.js" | head -1)
+  
+  if [ -z "$NPM_CLI_JS" ]; then
+    echo "Warning: Could not find npm-cli.js, npm commands may fail"
+    # Set to a fallback value so code can continue
+    NPM_CLI_JS="$NODE_BIN_DIR/npm"
   else
-    echo "Dependencies installed successfully with 'npm install'."
+    echo "Found npm-cli.js at: $NPM_CLI_JS"
   fi
-else
-  echo "Dependencies installed successfully with 'npm ci'."
 fi
 
+# Display which binaries we're using
+echo "Using Node binary: $NODE_BIN"
+echo "Using NPM CLI JS: $NPM_CLI_JS"
+
+# Remove existing node_modules directory and package files
+echo "Cleaning up existing installation..."
+rm -rf "$SCRIPT_DIR/node_modules"
+rm -f "$SCRIPT_DIR/package-lock.json"
+
+# Back up existing package.json if it exists
+if [ -f "$SCRIPT_DIR/package.json" ]; then
+  echo "Backing up existing package.json..."
+  cp "$SCRIPT_DIR/package.json" "$SCRIPT_DIR/package.json.bak"
+fi
+
+# Create a clean minimal package.json with ONLY net-snmp dependency
+echo "Creating minimal package.json with only net-snmp dependency..."
+VERSION=$(grep -o '"version": "[^"]*"' "$SCRIPT_DIR/package.json.bak" | head -1 | cut -d'"' -f4 || echo "2.6.3")
+echo '{
+  "name": "@serve.zone/nupst",
+  "version": "'$VERSION'",
+  "description": "Node.js UPS Shutdown Tool for SNMP-enabled UPS devices",
+  "main": "dist_ts/index.js",
+  "type": "module",
+  "bin": {
+    "nupst": "bin/nupst"
+  },
+  "dependencies": {
+    "net-snmp": "3.20.0"
+  },
+  "engines": {
+    "node": ">=16.0.0"
+  },
+  "private": true
+}' > "$SCRIPT_DIR/package.json"
+
+# Install ONLY net-snmp
+echo "Installing ONLY net-snmp dependency (+ 2 subdependencies)..."
+echo "Node version: $("$NODE_BIN" --version)"
+echo "Executing NPM directly with Node.js"
+
+# Execute npm-cli.js directly with our Node.js binary
+"$NODE_BIN" "$NPM_CLI_JS" --prefix "$SCRIPT_DIR" install --no-audit --no-fund
+
+INSTALL_STATUS=$?
+if [ $INSTALL_STATUS -ne 0 ]; then
+  echo "Error: Failed to install net-snmp dependency. NUPST may not function correctly."
+  echo "Restoring original package.json..."
+  mv "$SCRIPT_DIR/package.json.bak" "$SCRIPT_DIR/package.json"
+  exit 1
+else
+  echo "net-snmp dependency installed successfully."
+  # Show what's actually installed
+  echo "Installed modules:"
+  find "$SCRIPT_DIR/node_modules" -maxdepth 1 -type d | grep -v "^$SCRIPT_DIR/node_modules$" | sort
+  
+  # Remove backup if successful
+  rm -f "$SCRIPT_DIR/package.json.bak"
+fi
+
+# No temporary files to clean up
+
 echo "NUPST setup completed successfully."
 echo "You can now run NUPST using: $SCRIPT_DIR/bin/nupst"
 echo "To install NUPST globally, run: sudo ln -s $SCRIPT_DIR/bin/nupst /usr/local/bin/nupst"

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@serve.zone/nupst',
-  version: '2.5.2',
+  version: '2.6.8',
   description: 'Node.js UPS Shutdown Tool for SNMP-enabled UPS devices'
 }

ts/cli.ts

@@ -46,7 +46,7 @@ export class NupstCli {
   private extractDebugOptions(args: string[]): { debugMode: boolean; cleanedArgs: string[] } {
     const debugMode = args.includes('--debug') || args.includes('-d');
     // Remove debug flags from args
-    const cleanedArgs = args.filter(arg => arg !== '--debug' && arg !== '-d');
+    const cleanedArgs = args.filter((arg) => arg !== '--debug' && arg !== '-d');
 
     return { debugMode, cleanedArgs };
   }
@@ -151,7 +151,7 @@ export class NupstCli {
       console.log('Tailing nupst service logs (Ctrl+C to exit)...\n');
 
       const journalctl = spawn('journalctl', ['-u', 'nupst.service', '-n', '50', '-f'], {
-        stdio: ['ignore', 'inherit', 'inherit']
+        stdio: ['ignore', 'inherit', 'inherit'],
       });
 
       // Forward signals to child process
@@ -236,7 +236,7 @@ export class NupstCli {
       } catch (error) {
         console.error('┌─ Configuration Error ─────────────────────┐');
         console.error('│ No configuration found.');
-        console.error('│ Please run \'nupst setup\' first to create a configuration.');
+        console.error("│ Please run 'nupst setup' first to create a configuration.");
         console.error('└──────────────────────────────────────────┘');
         return;
       }
@@ -306,7 +306,7 @@ export class NupstCli {
       // Create a test config with a short timeout
       const testConfig = {
         ...config.snmp,
-        timeout: Math.min(config.snmp.timeout, 10000) // Use at most 10 seconds for testing
+        timeout: Math.min(config.snmp.timeout, 10000), // Use at most 10 seconds for testing
       };
 
       const status = await this.nupst.getSnmp().getUpsStatus(testConfig);
@@ -326,7 +326,7 @@ export class NupstCli {
       console.error('┌─ Connection Failed! ───────────────────────┐');
       console.error(`│ Error: ${error.message}`);
       console.error('└──────────────────────────────────────────┘');
-      console.log('\nPlease check your settings and run \'nupst setup\' to reconfigure.');
+      console.log("\nPlease check your settings and run 'nupst setup' to reconfigure.");
     }
   }
 
@@ -340,20 +340,28 @@ export class NupstCli {
 
     if (status.batteryCapacity < config.thresholds.battery) {
       console.log('│ ⚠️ WARNING: Battery capacity below threshold');
-      console.log(`│   Current: ${status.batteryCapacity}% | Threshold: ${config.thresholds.battery}%`);
+      console.log(
+        `│   Current: ${status.batteryCapacity}% | Threshold: ${config.thresholds.battery}%`
+      );
       console.log('│   System would initiate shutdown');
     } else {
       console.log('│ ✓ Battery capacity above threshold');
-      console.log(`│   Current: ${status.batteryCapacity}% | Threshold: ${config.thresholds.battery}%`);
+      console.log(
+        `│   Current: ${status.batteryCapacity}% | Threshold: ${config.thresholds.battery}%`
+      );
     }
 
     if (status.batteryRuntime < config.thresholds.runtime) {
       console.log('│ ⚠️ WARNING: Runtime below threshold');
-      console.log(`│   Current: ${status.batteryRuntime} min | Threshold: ${config.thresholds.runtime} min`);
+      console.log(
+        `│   Current: ${status.batteryRuntime} min | Threshold: ${config.thresholds.runtime} min`
+      );
       console.log('│   System would initiate shutdown');
     } else {
       console.log('│ ✓ Runtime above threshold');
-      console.log(`│   Current: ${status.batteryRuntime} min | Threshold: ${config.thresholds.runtime} min`);
+      console.log(
+        `│   Current: ${status.batteryRuntime} min | Threshold: ${config.thresholds.runtime} min`
+      );
     }
 
     console.log('└──────────────────────────────────────────┘');
@@ -393,7 +401,9 @@ Options:
   private async update(): Promise<void> {
     try {
       // Check if running as root
-      this.checkRootAccess('This command must be run as root to update NUPST and refresh the systemd service.');
+      this.checkRootAccess(
+        'This command must be run as root to update NUPST and refresh the systemd service.'
+      );
 
       console.log('┌─ NUPST Update Process ──────────────────┐');
       console.log('│ Updating NUPST from repository...');
@@ -412,25 +422,35 @@ Options:
       try {
         // 1. Update the repository
         console.log('│ Pulling latest changes from git repository...');
-        execSync(`cd ${installDir} && git fetch origin && git reset --hard origin/main`, { stdio: 'pipe' });
+        execSync(`cd ${installDir} && git fetch origin && git reset --hard origin/main`, {
+          stdio: 'pipe',
+        });
 
         // 2. Run the install.sh script
         console.log('│ Running install.sh to update NUPST...');
         execSync(`cd ${installDir} && bash ./install.sh`, { stdio: 'pipe' });
 
-        // 3. Run the setup.sh script 
-        console.log('│ Running setup.sh to update dependencies...');
-        execSync(`cd ${installDir} && bash ./setup.sh`, { stdio: 'pipe' });
+        // 3. Run the setup.sh script with force flag to update Node.js and dependencies
+        console.log('│ Running setup.sh to update Node.js and dependencies...');
+        execSync(`cd ${installDir} && bash ./setup.sh --force`, { stdio: 'pipe' });
 
         // 4. Refresh the systemd service
         console.log('│ Refreshing systemd service...');
 
         // First check if service exists
-        const serviceExists = execSync('systemctl list-unit-files | grep nupst.service').toString().includes('nupst.service');
+        let serviceExists = false;
+        try {
+          const output = execSync('systemctl list-unit-files | grep nupst.service').toString();
+          serviceExists = output.includes('nupst.service');
+        } catch (error) {
+          // If grep fails (service not found), serviceExists remains false
+          serviceExists = false;
+        }
 
         if (serviceExists) {
           // Stop the service if it's running
-          const isRunning = execSync('systemctl is-active nupst.service || true').toString().trim() === 'active';
+          const isRunning =
+            execSync('systemctl is-active nupst.service || true').toString().trim() === 'active';
           if (isRunning) {
             console.log('│ Stopping nupst service...');
             execSync('systemctl stop nupst.service');
@@ -474,7 +494,7 @@ Options:
 
       const rl = readline.createInterface({
         input: process.stdin,
-        output: process.stdout
+        output: process.stdout,
       });
 
       // Helper function to prompt for input
@@ -546,7 +566,10 @@ Options:
    * @param prompt Function to prompt for user input
    * @returns Updated configuration
    */
-  private async gatherSnmpSettings(config: any, prompt: (question: string) => Promise<string>): Promise<any> {
+  private async gatherSnmpSettings(
+    config: any,
+    prompt: (question: string) => Promise<string>
+  ): Promise<any> {
     // SNMP IP Address
     const defaultHost = config.snmp.host;
     const host = await prompt(`UPS IP Address [${defaultHost}]: `);
@@ -556,7 +579,7 @@ Options:
     const defaultPort = config.snmp.port;
     const portInput = await prompt(`SNMP Port [${defaultPort}]: `);
     const port = parseInt(portInput, 10);
-    config.snmp.port = (portInput.trim() && !isNaN(port)) ? port : defaultPort;
+    config.snmp.port = portInput.trim() && !isNaN(port) ? port : defaultPort;
 
     // SNMP Version
     const defaultVersion = config.snmp.version;
@@ -566,7 +589,10 @@ Options:
     console.log('  3) SNMPv3 (with security features)');
     const versionInput = await prompt(`Select SNMP version [${defaultVersion}]: `);
     const version = parseInt(versionInput, 10);
-    config.snmp.version = (versionInput.trim() && (version === 1 || version === 2 || version === 3)) ? version : defaultVersion;
+    config.snmp.version =
+      versionInput.trim() && (version === 1 || version === 2 || version === 3)
+        ? version
+        : defaultVersion;
 
     if (config.snmp.version === 1 || config.snmp.version === 2) {
       // SNMP Community String (for v1/v2c)
@@ -587,7 +613,10 @@ Options:
    * @param prompt Function to prompt for user input
    * @returns Updated configuration
    */
-  private async gatherSnmpV3Settings(config: any, prompt: (question: string) => Promise<string>): Promise<any> {
+  private async gatherSnmpV3Settings(
+    config: any,
+    prompt: (question: string) => Promise<string>
+  ): Promise<any> {
     console.log('\nSNMPv3 Security Settings:');
 
     // Security Level
@@ -595,9 +624,13 @@ Options:
     console.log('  1) noAuthNoPriv (No Authentication, No Privacy)');
     console.log('  2) authNoPriv (Authentication, No Privacy)');
     console.log('  3) authPriv (Authentication and Privacy)');
-    const defaultSecLevel = config.snmp.securityLevel ? 
-      (config.snmp.securityLevel === 'noAuthNoPriv' ? 1 : 
-       config.snmp.securityLevel === 'authNoPriv' ? 2 : 3) : 3;
+    const defaultSecLevel = config.snmp.securityLevel
+      ? config.snmp.securityLevel === 'noAuthNoPriv'
+        ? 1
+        : config.snmp.securityLevel === 'authNoPriv'
+        ? 2
+        : 3
+      : 3;
     const secLevelInput = await prompt(`Select Security Level [${defaultSecLevel}]: `);
     const secLevel = parseInt(secLevelInput, 10) || defaultSecLevel;
 
@@ -639,7 +672,9 @@ Options:
 
       // Allow customizing the timeout value
       const defaultTimeout = config.snmp.timeout / 1000; // Convert from ms to seconds for display
-      console.log('\nSNMPv3 operations with authentication and privacy may require longer timeouts.');
+      console.log(
+        '\nSNMPv3 operations with authentication and privacy may require longer timeouts.'
+      );
       const timeoutInput = await prompt(`SNMP Timeout in seconds [${defaultTimeout}]: `);
       const timeout = parseInt(timeoutInput, 10);
       if (timeoutInput.trim() && !isNaN(timeout)) {
@@ -656,13 +691,18 @@ Options:
    * @param prompt Function to prompt for user input
    * @returns Updated configuration
    */
-  private async gatherAuthenticationSettings(config: any, prompt: (question: string) => Promise<string>): Promise<any> {
+  private async gatherAuthenticationSettings(
+    config: any,
+    prompt: (question: string) => Promise<string>
+  ): Promise<any> {
     // Authentication protocol
     console.log('\nAuthentication Protocol:');
     console.log('  1) MD5');
     console.log('  2) SHA');
     const defaultAuthProtocol = config.snmp.authProtocol === 'SHA' ? 2 : 1;
-    const authProtocolInput = await prompt(`Select Authentication Protocol [${defaultAuthProtocol}]: `);
+    const authProtocolInput = await prompt(
+      `Select Authentication Protocol [${defaultAuthProtocol}]: `
+    );
     const authProtocol = parseInt(authProtocolInput, 10) || defaultAuthProtocol;
     config.snmp.authProtocol = authProtocol === 2 ? 'SHA' : 'MD5';
 
@@ -680,7 +720,10 @@ Options:
    * @param prompt Function to prompt for user input
    * @returns Updated configuration
    */
-  private async gatherPrivacySettings(config: any, prompt: (question: string) => Promise<string>): Promise<any> {
+  private async gatherPrivacySettings(
+    config: any,
+    prompt: (question: string) => Promise<string>
+  ): Promise<any> {
     // Privacy protocol
     console.log('\nPrivacy Protocol:');
     console.log('  1) DES');
@@ -704,32 +747,42 @@ Options:
    * @param prompt Function to prompt for user input
    * @returns Updated configuration
    */
-  private async gatherThresholdSettings(config: any, prompt: (question: string) => Promise<string>): Promise<any> {
+  private async gatherThresholdSettings(
+    config: any,
+    prompt: (question: string) => Promise<string>
+  ): Promise<any> {
     console.log('\nShutdown Thresholds:');
 
     // Battery threshold
     const defaultBatteryThreshold = config.thresholds.battery;
-    const batteryThresholdInput = await prompt(`Battery percentage threshold [${defaultBatteryThreshold}%]: `);
+    const batteryThresholdInput = await prompt(
+      `Battery percentage threshold [${defaultBatteryThreshold}%]: `
+    );
     const batteryThreshold = parseInt(batteryThresholdInput, 10);
-    config.thresholds.battery = (batteryThresholdInput.trim() && !isNaN(batteryThreshold)) 
-      ? batteryThreshold 
-      : defaultBatteryThreshold;
+    config.thresholds.battery =
+      batteryThresholdInput.trim() && !isNaN(batteryThreshold)
+        ? batteryThreshold
+        : defaultBatteryThreshold;
 
     // Runtime threshold
     const defaultRuntimeThreshold = config.thresholds.runtime;
-    const runtimeThresholdInput = await prompt(`Runtime minutes threshold [${defaultRuntimeThreshold} minutes]: `);
+    const runtimeThresholdInput = await prompt(
+      `Runtime minutes threshold [${defaultRuntimeThreshold} minutes]: `
+    );
     const runtimeThreshold = parseInt(runtimeThresholdInput, 10);
-    config.thresholds.runtime = (runtimeThresholdInput.trim() && !isNaN(runtimeThreshold)) 
-      ? runtimeThreshold 
-      : defaultRuntimeThreshold;
+    config.thresholds.runtime =
+      runtimeThresholdInput.trim() && !isNaN(runtimeThreshold)
+        ? runtimeThreshold
+        : defaultRuntimeThreshold;
 
     // Check interval
     const defaultInterval = config.checkInterval / 1000; // Convert from ms to seconds for display
     const intervalInput = await prompt(`Check interval in seconds [${defaultInterval}]: `);
     const interval = parseInt(intervalInput, 10);
-    config.checkInterval = (intervalInput.trim() && !isNaN(interval)) 
-      ? interval * 1000 // Convert to ms
-      : defaultInterval * 1000;
+    config.checkInterval =
+      intervalInput.trim() && !isNaN(interval)
+        ? interval * 1000 // Convert to ms
+        : defaultInterval * 1000;
 
     return config;
   }
@@ -740,7 +793,10 @@ Options:
    * @param prompt Function to prompt for user input
    * @returns Updated configuration
    */
-  private async gatherUpsModelSettings(config: any, prompt: (question: string) => Promise<string>): Promise<any> {
+  private async gatherUpsModelSettings(
+    config: any,
+    prompt: (question: string) => Promise<string>
+  ): Promise<any> {
     console.log('\nUPS Model Selection:');
     console.log('  1) CyberPower');
     console.log('  2) APC');
@@ -749,12 +805,20 @@ Options:
     console.log('  5) Liebert/Vertiv');
     console.log('  6) Custom (Advanced)');
 
-    const defaultModelValue = config.snmp.upsModel === 'cyberpower' ? 1 :
-                           config.snmp.upsModel === 'apc' ? 2 :
-                           config.snmp.upsModel === 'eaton' ? 3 :
-                           config.snmp.upsModel === 'tripplite' ? 4 :
-                           config.snmp.upsModel === 'liebert' ? 5 : 
-                           config.snmp.upsModel === 'custom' ? 6 : 1;
+    const defaultModelValue =
+      config.snmp.upsModel === 'cyberpower'
+        ? 1
+        : config.snmp.upsModel === 'apc'
+        ? 2
+        : config.snmp.upsModel === 'eaton'
+        ? 3
+        : config.snmp.upsModel === 'tripplite'
+        ? 4
+        : config.snmp.upsModel === 'liebert'
+        ? 5
+        : config.snmp.upsModel === 'custom'
+        ? 6
+        : 1;
 
     const modelInput = await prompt(`Select UPS model [${defaultModelValue}]: `);
     const modelValue = parseInt(modelInput, 10) || defaultModelValue;
@@ -783,7 +847,7 @@ Options:
       config.snmp.customOIDs = {
         POWER_STATUS: powerStatusOID.trim(),
         BATTERY_CAPACITY: batteryCapacityOID.trim(),
-        BATTERY_RUNTIME: batteryRuntimeOID.trim()
+        BATTERY_RUNTIME: batteryRuntimeOID.trim(),
       };
     }
 
@@ -799,8 +863,10 @@ Options:
     console.log(`│ SNMP Host: ${config.snmp.host}:${config.snmp.port}`);
     console.log(`│ SNMP Version: ${config.snmp.version}`);
     console.log(`│ UPS Model: ${config.snmp.upsModel}`);
-    console.log(`│ Thresholds: ${config.thresholds.battery}% battery, ${config.thresholds.runtime} min runtime`);
-    console.log(`│ Check Interval: ${config.checkInterval/1000} seconds`);
+    console.log(
+      `│ Thresholds: ${config.thresholds.battery}% battery, ${config.thresholds.runtime} min runtime`
+    );
+    console.log(`│ Check Interval: ${config.checkInterval / 1000} seconds`);
     console.log('└──────────────────────────────────────────┘\n');
   }
 
@@ -809,15 +875,20 @@ Options:
    * @param config Current configuration
    * @param prompt Function to prompt for user input
    */
-  private async optionallyTestConnection(config: any, prompt: (question: string) => Promise<string>): Promise<void> {
-    const testConnection = await prompt('Would you like to test the connection to your UPS? (y/N): ');
+  private async optionallyTestConnection(
+    config: any,
+    prompt: (question: string) => Promise<string>
+  ): Promise<void> {
+    const testConnection = await prompt(
+      'Would you like to test the connection to your UPS? (y/N): '
+    );
     if (testConnection.toLowerCase() === 'y') {
       console.log('\nTesting connection to UPS...');
       try {
         // Create a test config with a short timeout
         const testConfig = {
           ...config.snmp,
-          timeout: Math.min(config.snmp.timeout, 10000) // Use at most 10 seconds for testing
+          timeout: Math.min(config.snmp.timeout, 10000), // Use at most 10 seconds for testing
         };
 
         const status = await this.nupst.getSnmp().getUpsStatus(testConfig);
@@ -843,7 +914,8 @@ Options:
   private async restartServiceIfRunning(): Promise<void> {
     try {
       // Check if the service is active
-      const isActive = execSync('systemctl is-active nupst.service || true').toString().trim() === 'active';
+      const isActive =
+        execSync('systemctl is-active nupst.service || true').toString().trim() === 'active';
 
       if (isActive) {
         // Service is running, restart it
@@ -878,18 +950,24 @@ Options:
    * Optionally enable and start systemd service
    * @param prompt Function to prompt for user input
    */
-  private async optionallyEnableService(prompt: (question: string) => Promise<string>): Promise<void> {
+  private async optionallyEnableService(
+    prompt: (question: string) => Promise<string>
+  ): Promise<void> {
     if (process.getuid && process.getuid() !== 0) {
       console.log('\nNote: Run "sudo nupst enable" to set up NUPST as a system service.');
     } else {
-      const setupService = await prompt('Would you like to enable NUPST as a system service? (y/N): ');
+      const setupService = await prompt(
+        'Would you like to enable NUPST as a system service? (y/N): '
+      );
       if (setupService.toLowerCase() === 'y') {
         try {
           await this.nupst.getSystemd().install();
           console.log('Service installed and enabled to start on boot.');
 
           // Ask if the user wants to start the service now
-          const startService = await prompt('Would you like to start the NUPST service now? (Y/n): ');
+          const startService = await prompt(
+            'Would you like to start the NUPST service now? (Y/n): '
+          );
           if (startService.toLowerCase() !== 'n') {
             await this.nupst.getSystemd().start();
             console.log('NUPST service started successfully.');
@@ -914,7 +992,7 @@ Options:
       } catch (error) {
         console.error('┌─ Configuration Error ─────────────────────┐');
         console.error('│ No configuration found.');
-        console.error('│ Please run \'nupst setup\' first to create a configuration.');
+        console.error("│ Please run 'nupst setup' first to create a configuration.");
         console.error('└──────────────────────────────────────────┘');
         return;
       }
@@ -938,7 +1016,10 @@ Options:
         console.log(`│   Username: ${config.snmp.username}`);
 
         // Show auth and privacy details based on security level
-        if (config.snmp.securityLevel === 'authNoPriv' || config.snmp.securityLevel === 'authPriv') {
+        if (
+          config.snmp.securityLevel === 'authNoPriv' ||
+          config.snmp.securityLevel === 'authPriv'
+        ) {
           console.log(`│   Auth Protocol: ${config.snmp.authProtocol || 'None'}`);
         }
 
@@ -954,7 +1035,9 @@ Options:
       if (config.snmp.upsModel === 'custom' && config.snmp.customOIDs) {
         console.log('│ Custom OIDs:');
         console.log(`│   Power Status: ${config.snmp.customOIDs.POWER_STATUS || 'Not set'}`);
-        console.log(`│   Battery Capacity: ${config.snmp.customOIDs.BATTERY_CAPACITY || 'Not set'}`);
+        console.log(
+          `│   Battery Capacity: ${config.snmp.customOIDs.BATTERY_CAPACITY || 'Not set'}`
+        );
         console.log(`│   Battery Runtime: ${config.snmp.customOIDs.BATTERY_RUNTIME || 'Not set'}`);
       }
 
@@ -973,8 +1056,10 @@ Options:
 
       // Show service status
       try {
-        const isActive = execSync('systemctl is-active nupst.service || true').toString().trim() === 'active';
-        const isEnabled = execSync('systemctl is-enabled nupst.service || true').toString().trim() === 'enabled';
+        const isActive =
+          execSync('systemctl is-active nupst.service || true').toString().trim() === 'active';
+        const isEnabled =
+          execSync('systemctl is-enabled nupst.service || true').toString().trim() === 'enabled';
 
         console.log('┌─ Service Status ─────────────────────────┐');
         console.log(`│ Service Active: ${isActive ? 'Yes' : 'No'}`);
@@ -983,7 +1068,6 @@ Options:
       } catch (error) {
         // Ignore errors checking service status
       }
-      
     } catch (error) {
       console.error(`Failed to display configuration: ${error.message}`);
     }
@@ -1002,7 +1086,7 @@ Options:
 
       const rl = readline.createInterface({
         input: process.stdin,
-        output: process.stdout
+        output: process.stdout,
       });
 
       // Helper function to prompt for input
@@ -1019,7 +1103,9 @@ Options:
       console.log('This will completely remove NUPST from your system.\n');
 
       // Ask about removing configuration
-      const removeConfig = await prompt('Do you want to remove the NUPST configuration files? (y/N): ');
+      const removeConfig = await prompt(
+        'Do you want to remove the NUPST configuration files? (y/N): '
+      );
 
       // Find the uninstall.sh script location
       let uninstallScriptPath: string;
@@ -1036,10 +1122,7 @@ Options:
         await fs.access(uninstallScriptPath);
       } catch (error) {
         // If we can't find it in the expected location, try common installation paths
-        const commonPaths = [
-          '/opt/nupst/uninstall.sh',
-          join(process.cwd(), 'uninstall.sh')
-        ];
+        const commonPaths = ['/opt/nupst/uninstall.sh', join(process.cwd(), 'uninstall.sh')];
 
         for (const path of commonPaths) {
           try {
@@ -1068,16 +1151,15 @@ Options:
       const env = {
         ...process.env,
         REMOVE_CONFIG: removeConfig.toLowerCase() === 'y' ? 'yes' : 'no',
-        REMOVE_REPO: 'yes',  // Always remove repo as requested
-        NUPST_CLI_CALL: 'true'  // Flag to indicate this is being called from CLI
+        REMOVE_REPO: 'yes', // Always remove repo as requested
+        NUPST_CLI_CALL: 'true', // Flag to indicate this is being called from CLI
       };
 
       // Run the uninstall script with sudo
       execSync(`sudo bash ${uninstallScriptPath}`, {
         env,
-        stdio: 'inherit'  // Show output in the terminal
+        stdio: 'inherit', // Show output in the terminal
       });
-      
     } catch (error) {
       console.error(`Uninstall failed: ${error.message}`);
       process.exit(1);

ts/daemon.ts

@@ -1,11 +1,12 @@
 import * as fs from 'fs';
 import * as path from 'path';
-import { exec } from 'child_process';
+import { exec, execFile } from 'child_process';
 import { promisify } from 'util';
 import { NupstSnmp } from './snmp/manager.js';
 import type { ISnmpConfig } from './snmp/types.js';
 
 const execAsync = promisify(exec);
+const execFileAsync = promisify(execFile);
 
 /**
  * Configuration interface for the daemon
@@ -298,23 +299,101 @@ export class NupstDaemon {
     const shutdownDelayMinutes = 5;
     
     try {
-      // Execute shutdown command with delay to allow for VM graceful shutdown
-      const { stdout } = await execAsync(`shutdown -h +${shutdownDelayMinutes} "UPS battery critical, shutting down in ${shutdownDelayMinutes} minutes"`);
-      console.log('Shutdown initiated:', stdout);
-      console.log(`Allowing ${shutdownDelayMinutes} minutes for VMs to shut down safely`);
+      // Find shutdown command in common system paths
+      const shutdownPaths = [
+        '/sbin/shutdown',
+        '/usr/sbin/shutdown',
+        '/bin/shutdown',
+        '/usr/bin/shutdown'
+      ];
+      
+      let shutdownCmd = '';
+      for (const path of shutdownPaths) {
+        try {
+          if (fs.existsSync(path)) {
+            shutdownCmd = path;
+            console.log(`Found shutdown command at: ${shutdownCmd}`);
+            break;
+          }
+        } catch (e) {
+          // Continue checking other paths
+        }
+      }
+      
+      if (shutdownCmd) {
+        // Execute shutdown command with delay to allow for VM graceful shutdown
+        console.log(`Executing: ${shutdownCmd} -h +${shutdownDelayMinutes} "UPS battery critical..."`);
+        const { stdout } = await execFileAsync(shutdownCmd, [
+          '-h', 
+          `+${shutdownDelayMinutes}`, 
+          `UPS battery critical, shutting down in ${shutdownDelayMinutes} minutes`
+        ]);
+        console.log('Shutdown initiated:', stdout);
+        console.log(`Allowing ${shutdownDelayMinutes} minutes for VMs to shut down safely`);
+      } else {
+        // Try using the PATH to find shutdown
+        try {
+          console.log('Shutdown command not found in common paths, trying via PATH...');
+          const { stdout } = await execAsync(`shutdown -h +${shutdownDelayMinutes} "UPS battery critical, shutting down in ${shutdownDelayMinutes} minutes"`, {
+            env: process.env // Pass the current environment
+          });
+          console.log('Shutdown initiated:', stdout);
+        } catch (e) {
+          throw new Error(`Shutdown command not found: ${e.message}`);
+        }
+      }
       
       // Monitor UPS during shutdown and force immediate shutdown if battery gets too low
       console.log('Monitoring UPS during shutdown process...');
       await this.monitorDuringShutdown();
     } catch (error) {
       console.error('Failed to initiate shutdown:', error);
-      // Try a different method if first one fails
-      try {
-        console.log('Trying alternative shutdown method...');
-        await execAsync('poweroff --force');
-      } catch (innerError) {
-        console.error('All shutdown methods failed:', innerError);
+      
+      // Try alternative shutdown methods
+      const alternatives = [
+        { cmd: 'poweroff', args: ['--force'] },
+        { cmd: 'halt', args: ['-p'] },
+        { cmd: 'systemctl', args: ['poweroff'] },
+        { cmd: 'reboot', args: ['-p'] } // Some systems allow reboot -p for power off
+      ];
+      
+      for (const alt of alternatives) {
+        try {
+          // First check if command exists in common system paths
+          const paths = [
+            `/sbin/${alt.cmd}`,
+            `/usr/sbin/${alt.cmd}`,
+            `/bin/${alt.cmd}`,
+            `/usr/bin/${alt.cmd}`
+          ];
+          
+          let cmdPath = '';
+          for (const path of paths) {
+            if (fs.existsSync(path)) {
+              cmdPath = path;
+              break;
+            }
+          }
+          
+          if (cmdPath) {
+            console.log(`Trying alternative shutdown method: ${cmdPath} ${alt.args.join(' ')}`);
+            await execFileAsync(cmdPath, alt.args);
+            return; // Exit if successful
+          } else {
+            // Try using PATH environment
+            console.log(`Trying alternative via PATH: ${alt.cmd} ${alt.args.join(' ')}`);
+            await execAsync(`${alt.cmd} ${alt.args.join(' ')}`, {
+              env: process.env // Pass the current environment
+            });
+            return; // Exit if successful
+          }
+        } catch (altError) {
+          console.error(`Alternative method ${alt.cmd} failed:`, altError);
+          // Continue to next method
+        }
       }
+      
+      console.error('All shutdown methods failed');
     }
   }
   
@@ -346,10 +425,79 @@ export class NupstDaemon {
           console.log('└──────────────────────────────────────────┘');
           
           try {
-            await execAsync('shutdown -h now "EMERGENCY: UPS battery critically low, shutting down NOW"');
+            // Find shutdown command in common system paths
+            const shutdownPaths = [
+              '/sbin/shutdown',
+              '/usr/sbin/shutdown',
+              '/bin/shutdown',
+              '/usr/bin/shutdown'
+            ];
+            
+            let shutdownCmd = '';
+            for (const path of shutdownPaths) {
+              if (fs.existsSync(path)) {
+                shutdownCmd = path;
+                console.log(`Found shutdown command at: ${shutdownCmd}`);
+                break;
+              }
+            }
+            
+            if (shutdownCmd) {
+              console.log(`Executing emergency shutdown: ${shutdownCmd} -h now`);
+              await execFileAsync(shutdownCmd, ['-h', 'now', 'EMERGENCY: UPS battery critically low, shutting down NOW']);
+            } else {
+              // Try using the PATH to find shutdown
+              console.log('Shutdown command not found in common paths, trying via PATH...');
+              await execAsync('shutdown -h now "EMERGENCY: UPS battery critically low, shutting down NOW"', {
+                env: process.env // Pass the current environment
+              });
+            }
           } catch (error) {
-            console.error('Emergency shutdown failed, trying alternative method...');
-            await execAsync('poweroff --force');
+            console.error('Emergency shutdown failed, trying alternative methods...');
+            
+            // Try alternative shutdown methods in sequence
+            const alternatives = [
+              { cmd: 'poweroff', args: ['--force'] },
+              { cmd: 'halt', args: ['-p'] },
+              { cmd: 'systemctl', args: ['poweroff'] }
+            ];
+            
+            for (const alt of alternatives) {
+              try {
+                // Check common paths
+                const paths = [
+                  `/sbin/${alt.cmd}`,
+                  `/usr/sbin/${alt.cmd}`,
+                  `/bin/${alt.cmd}`,
+                  `/usr/bin/${alt.cmd}`
+                ];
+                
+                let cmdPath = '';
+                for (const path of paths) {
+                  if (fs.existsSync(path)) {
+                    cmdPath = path;
+                    break;
+                  }
+                }
+                
+                if (cmdPath) {
+                  console.log(`Emergency: using ${cmdPath} ${alt.args.join(' ')}`);
+                  await execFileAsync(cmdPath, alt.args);
+                  return; // Exit if successful
+                } else {
+                  // Try using PATH
+                  console.log(`Emergency: trying ${alt.cmd} via PATH`);
+                  await execAsync(`${alt.cmd} ${alt.args.join(' ')}`, {
+                    env: process.env
+                  });
+                  return; // Exit if successful
+                }
+              } catch (altError) {
+                // Continue to next method
+              }
+            }
+            
+            console.error('All emergency shutdown methods failed');
           }
           
           // Stop monitoring after initiating emergency shutdown

ts/snmp/manager.ts

@@ -1,4 +1,3 @@
-import * as dgram from 'dgram';
 import * as snmp from 'net-snmp';
 import type { IOidSet, ISnmpConfig, TUpsModel, IUpsStatus } from './types.js';
 import { UpsOidSets } from './oid-sets.js';