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This shell command sets up and starts a LaunchAgent on macOS by copying a plist file, loading it, enabling it, and starting it. The command assumes the plist file is in the correct format and the user has necessary permissions to modify their LaunchAgents directory.

Run example

npm run import -- "install launchd"

install launchd

cp ./com.jupytangular.heartbeat.plist ~/Library/LaunchCtl/ \
   && launchctl load com.jupytangular.heartbeat.plist \
   && launchctl enable com.jupytangular.heartbeat.plist \
   && launchctl start com.jupytangular.heartbeat.plist

What the code could have been:

bash
#!/bin/bash

# Define a function to copy and load a LaunchDaemon plist
load_launch_daemon() {
  local plist_path=./com.jupytangular.heartbeat.plist
  local target_path=~/Library/LaunchAgents/com.jupytangular.heartbeat.plist

  # Copy the plist to the target path
  if! cp "$plist_path" "$target_path"; then
    echo "Error copying plist: $?"
    return 1
  fi

  # Load the plist
  if! launchctl load "$target_path"; then
    echo "Error loading plist: $?"
    return 1
  fi

  # Enable the launch daemon
  if! launchctl enable "$target_path"; then
    echo "Error enabling launch daemon: $?"
    return 1
  fi

  # Start the launch daemon
  if! launchctl start "$target_path"; then
    echo "Error starting launch daemon: $?"
    return 1
  fi
}

# Call the function to load the launch daemon
load_launch_daemon || {
  echo "Failed to load launch daemon. Check the plist path and permissions."
}

Command Breakdown

Command Purpose

The provided code is a shell command that sets up and starts a LaunchAgent on macOS.

Breakdown

  1. cp./com.jupytangular.heartbeat.plist ~/Library/LaunchAgents/

  2. launchctl load com.jupytangular.heartbeat.plist

  3. launchctl enable com.jupytangular.heartbeat.plist

  4. launchctl start com.jupytangular.heartbeat.plist

Assumptions