Running multiple npm tasks concurrently using a ".sh" file in Windows: a step-by-step guide

Brand new to ".sh" right now when faced with this question. I am not even certain what ".sh" refers to - Shell, Powershell, Bourne shell, etc. Currently, I am operating from a Windows OS.

The goal of this question is:

  1. Change directories
  2. Run the npm script (ensure it continues running without being terminated)
  3. Change directories
  4. Run another npm script (ensure it continues running without being terminated)

Tasks 2 and 4 need to be executed without interruption.

My initial code snippet is as follows:

cd UAA_Generators/JapaneseSyntax/ByNodeJS/DataStructures/Tokens || exit
npm run "Incremental building"

cd ../ModulesCollection || exit
npm run "Incremental building"

Currently, only the first task has been completed.

node.jspowershellshellnpm

Answer №1

I was a bit confused about your statement regarding executing tasks without being killed while running. If you want npm runs to be background tasks and not hold up the script, you can use the '&' operator at the end of the command line.
For example, the following script will run "incremental building" as a background task, then switch directories and run "Incremental building" in the ModulesCollection directory:

#!bin/bash
cd UAA_Generators/JapaneseSyntax/ByNodeJS/DataStructures/Tokens 
npm run "Incremental building" &

cd ../ModulesCollection 
npm run "Incremental building"

If you want both commands to run simultaneously without waiting for them to finish, simply add another '&' after each 'npm run' command.

It's unclear why you included '|| Exit' after changing directories. Is there additional code missing? It's generally not recommended to prematurely exit your shell before completing tasks, which may have caused issues with your script execution.

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