Script Execution

By default, Miso runs all scripts with sh.

Changing the Interpreter

You can run scripts with a different interpreter in three ways:

1. Use a Different File Extension

Miso selects the interpreter based on the file extension:

2. Configure the Default Shell in miso.json

For scripts with no recognized extension, you can override the default sh in miso.json:

3. Use a Shebang

While you don’t need one, if the first line starts with #!, Miso uses the specified interpreter:

#!/usr/bin/env node
console.log("Running with Node.js");

Interpreter Requirements

Make sure the required interpreter is installed and available in your PATH:

which node
which python3
which ruby

Error Handling

If a script exits with a non-zero status code, Miso will display the error and exit with the same code:

if [ -z "$1" ]; then
  echo "Error: Environment required"
  exit 1
fi