Tag: CLI

Shell commands with Node

Running CLI Node scripts, capture the return value of a shell command:

const execSync = require('child_process').execSync;
const nodeVer = execSync('node -v', { encoding: 'utf8' });

Shell command reports in the CLI:

const execSync = require('child_process').execSync;
execSync('npm -g ls', { stdio: 'inherit' });

Colored Console Output

const out = {

  end: '\x1b[0m',

  // Modifiers.
  blink: '\x1b[5m',
  bright: '\x1b[1m',
  dim: '\x1b[2m',
  hidden: '\x1b[8m',
  reverse: '\x1b[7m',
  underscore: '\x1b[4m',

  // Foreground Colors.
  black: '\x1b[30m',
  blue: '\x1b[34m',
  cyan: '\x1b[36m',
  green: '\x1b[32m',
  magenta: '\x1b[35m',
  red: '\x1b[31m',
  yellow: '\x1b[33m',
  white: '\x1b[37m',

  // Background Colors.
  bgBlack: '\x1b[40m',
  bgBlue: '\x1b[44m',
  bgCyan: '\x1b[46m',
  bgGreen: '\x1b[42m',
  bgMagenta: '\x1b[45m',
  bgRed: '\x1b[41m',
  bgYellow: '\x1b[43m',
  bgWhite: '\x1b[47m',
};

Usage:

console.log(out.red, 'Something went wrong:', err, out.end);

Windows Recursively Delete Folders

Dreamweaver creates _notes folders in each directory when you upload a file. Recently switched to Aptana and wanted to remove all of these folders that are now useless clutter in my filesystem. Here’s how to do it on Windows CLI in one fell swoop:

> cd \path\to\my\project\folder
> for /d /r . %d in (_notes) do @if exist "%d" rd /s/q "%d"

Links

Stack Overflow
Index of Windows CLI