Refactoring tool detection, work in progress

lib/iwlist.js

@@ -8,6 +8,8 @@ const _       = require('lodash');
 // when the default location, /usr/bin/ is not in the PATH!). GitHub issue #1
 const tool    = 'iwlist';
 const cmdLine = tool + ' scan';
+const detector = tool + ' --help';
+
 
 const macRegex  = /([0-9a-zA-Z]{1}[0-9a-zA-Z]{1}[:]{1}){5}[0-9a-zA-Z]{1}[0-9a-zA-Z]{1}/;
 const cellRegex = /Cell [0-9]{2,} - Address:/;
@@ -81,5 +83,6 @@ function parseOutput(str, callback) {
 module.exports = {
   parseOutput: parseOutput,
   cmdLine    : cmdLine,
+  detector   : detector,
   tool       : tool
 };