Basic list of installed software

installed-software.js

@@ -0,0 +1,20 @@
+var commandExistsSync = require('command-exists').sync;
+
+exports.getInstalledSoftware = (softwareList) => {
+  const installed = {};
+  for(var software of softwareList) {
+    var name = software.name;
+    var commands = software.commands;
+    
+    installed[name] = [];
+
+    for(var command of commands) {
+      var exists = commandExistsSync(command);
+      if(exists) {
+        installed[name].push(command);
+      }
+    }
+  }
+  return installed;
+}
+