Execute a node_modules/.bin script on Windows.

npm-exec.bat

@ECHO OFF
SETLOCAL

REM Speed up by checking for bin directory directly
IF NOT EXIST node_modules\.bin GOTO FINDBIN
SET BIN=.\node_modules\.bin
GOTO RUN

:FINDBIN
REM Find the current bin directory from npm, storing the result in 'BIN'
FOR /f "delims=" %%i IN ('npm bin') DO SET BIN=%%i

:RUN
SET PATH=%BIN%;%PATH%

REM Run the arguments passed into this script, including the script name
%*

ENDLOCAL

Drop this file anywhere in your PATH and then you can run, for example:

C:\Some Node Package>npm-exec babel -h

This will run the locally installed babel. No need to globally install it. Useful when you want to run one-off commands to locally installed pacjages without adding an npm script to package.json.

Verify that you're running the right script:

C:\Some Node Package>npm-exec where babel
C:\Some Node Package\node_modules\.bin\babel.cmd

References:

• Setting local variables in batch files
• Assign command output to a variable in a batch file
• Forwarding all batch file parameters to inner command
• Testing if a directory exists in a batch file