Izmjenjena struktura, dodan backand

web/node_modules/shelljs/src/cat.js

@@ -0,0 +1,42 @@
+var common = require('./common');
+var fs = require('fs');
+
+common.register('cat', _cat, {
+  canReceivePipe: true,
+});
+
+//@
+//@ ### cat(file [, file ...])
+//@ ### cat(file_array)
+//@
+//@ Examples:
+//@
+//@ ```javascript
+//@ var str = cat('file*.txt');
+//@ var str = cat('file1', 'file2');
+//@ var str = cat(['file1', 'file2']); // same as above
+//@ ```
+//@
+//@ Returns a string containing the given file, or a concatenated string
+//@ containing the files if more than one file is given (a new line character is
+//@ introduced between each file).
+function _cat(options, files) {
+  var cat = common.readFromPipe();
+
+  if (!files && !cat) common.error('no paths given');
+
+  files = [].slice.call(arguments, 1);
+
+  files.forEach(function (file) {
+    if (!fs.existsSync(file)) {
+      common.error('no such file or directory: ' + file);
+    } else if (fs.statSync(file).isDirectory()) {
+      common.error(file + ': Is a directory');
+    }
+
+    cat += fs.readFileSync(file, 'utf8');
+  });
+
+  return cat;
+}
+module.exports = _cat;