kattu 
Run commands quietly unless the command fails
Usage
I often wish to run commands but hide the output unless the command fails. In such cases, I would love to see both stdout and stderr so that I can analyze the issues. Mostly I use this while doing sysadmin stuffs.
Install
$ npm install --save kattu
Usage
const kattu = require('kattu');
kattu('ls /tmp');
kattu('ls /tmp/does/not/exist');
API
kattu(cmd)
cmd
Type: string
Pass the command you wish to run.
CLI
$ npm install --global kattu
$ kattu --help
  Usage
    kattu [cmd]
  Examples
    $ kattu ls /tmp
    $ kattu ls /tmp/does/not/exist
    ls: cannot access /tmp/abc: No such file or directory
License
MIT © techgaun