Asynchronous execution. If a callback is provided, it will be set to true, regardless of the passed value (default: false).
Optional cwd
cwd:undefined | string
Optional encoding
encoding:undefined | string
Character encoding to use. Affects the values returned to stdout and stderr, and what is written to stdout and stderr when not in silent mode (default: 'utf8').
Asynchronous execution. If a callback is provided, it will be set to true, regardless of the passed value (default: false).