x-exec

Simple convenience wrapper for doing shell stuff in node. Provides a few helpful functions
wrapping child_process.exec/execSync:

Synchronous API

``ts
import exec from 'x-exec';

// err is null | ErrData, output is whatever went to stdout
const [err, output] = exec(which cowsay);

// returns whatever would have gone to stdout
// but if there was an error, logs it and exits "1"
const output = exec.exit(which cowsay);

// swallows stdout, and just returns a boolean for exit code
const success = exec.success(which cowsay);

// passes stdout/err thru to parent process stdout/err
// returning boolean for exit code
const success = exec.out(which cowsay);
`

Async (Promise) API

`ts
import exec from 'x-exec';

// err is null | ErrData, output is whatever went to stdout
const [err, output] = await exec.async(which cowsay);

// returns whatever would have gone to stdout
// but if there was an error, logs it and exits "1"
const output = await exec.async.exit(which cowsay);

// swallows stdout, and just returns a boolean for exit code
const success = await exec.async.success(which cowsay);

// there is no async version of exec.out
``