then-system v1.1.0

then-system

the system() you've missed

Installation

npm install then-system

API

system(command)

system(command, args)

system(command, opts)

system(command, args, opts)

Returns a promise for undefined. Uses child_process.spawn to spawn the process, and waits for it to exit. If the process exits abnormally, the promise is rejected with an error.

For clarity, command is allowed to be an array, for cases like vmadm boot, where vmadm clearly isn't a very useful description of what command is being run. This only makes a difference for error reporting.

ExitError

• name: ExitError

• stderr: stderr output of the process (Buffer)

  then, depending on how it exited:

• signal: signal that killed the process (string)

• message: '`' + command + '` killed by signal `' + err.signal + '`: ' + err.stderr

  or

• code: exit code (integer)

• message: '`' command + '` exited with ' + err.code + ': ' + err.stderr