VSCode/How To/Fix Ctrl+C Not Working in Integrated Terminal

• How To Fix Ctrl+C Not Working in VS Code Integrated Terminal

  • Overview

    • This guide helps you fix issues where Ctrl+C (SIGINT) doesn't work to interrupt processes running in VS Code's integrated terminal
    • Useful when running long-lived processes like caffeinate or other commands that should be interruptible
    • Addresses VS Code terminal keybinding interception and signal handling issues

  • Prerequisites

    • VS Code installed and running
    • Access to VS Code settings
    • A command or process that needs to be interruptible with Ctrl+C

  • Steps

    • 1. Enable sendKeybindingsToShell Setting

      • Open VS Code Settings (Cmd+, on macOS or Ctrl+, on Windows/Linux)
      • Search for terminal.integrated.sendKeybindingsToShell
      • Check the box or set the value to true
      • This allows terminal keybindings to pass through to the shell instead of being intercepted by VS Code

    • 2. Configure commandsToSkipShell (Alternative Method)

      • Open VS Code Settings
      • Search for terminal.integrated.commandsToSkipShell
      • Click "Edit in settings.json"
      • Remove workbench.action.terminal.sendSequence from the array if present
      • Or ensure Ctrl+C keybindings are not blocked by other commands in this list

    • 3. Verify the Fix

      • Open a new integrated terminal in VS Code
      • Run a test command like caffeinate -d -i -m -s or sleep 30
      • Press Ctrl+C
      • The command should interrupt successfully

    • 4. Alternative: Use External Terminal (If Issue Persists)

      • If the integrated terminal still has issues, run long-lived processes in your system's native terminal application
      • On macOS: Open Terminal.app
      • On Windows: Open PowerShell or Command Prompt
      • On Linux: Open your default terminal emulator
      • Run your command there where Ctrl+C works reliably

    • 5. Alternative: Background Process and Kill by PID

      • If you must use VS Code terminal and Ctrl+C doesn't work:
      • Run your command in the background by appending &:
        bash

        caffeinate -d -i -m -s &

      • Note the process ID (PID) that appears
      • When you need to stop it, run:
        bash

        kill <PID>

      • Or use pkill to find and kill by process name:
        bash

        pkill -f caffeinate

  • Troubleshooting

    • If Ctrl+C still doesn't work after enabling sendKeybindingsToShell:
      • Restart VS Code to ensure settings take effect
      • Check if you have VS Code extensions that might intercept terminal input
      • Verify your shell profile (.zshrc, .bashrc) doesn't override signal handling
    • If the setting doesn't appear in Settings UI:
      • Open settings.json directly (Cmd+Shift+P → "Preferences: Open User Settings (JSON)")
      • Add manually: "terminal.integrated.sendKeybindingsToShell": true
    • For commands that specifically ignore SIGINT:
      • Some processes like caffeinate may need SIGTERM instead:
        bash

        kill -TERM <PID>

      • Or force kill with SIGKILL (use as last resort):
        bash

        kill -9 <PID>

  • Related

    • VS Code Terminal Advanced Documentation