Renaming Files and Directories

You may need to rename files and folders in you Node.js application to make room for new data, archive old data, or apply changes made by a user. Renaming files and folders uses the following fs calls:

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fs.rename(oldPath, newPath, callback)
fs.renameSync(oldPath, newPath)

The oldPath parameter specifies the existing file or directory path, and the newPath parameter specifies the new name. The renameSync(path) function returns true or false, depending on whether the file or directory was successfully renamed. On the other hand, an asynchronous rename() call passes an error value to the callback function if an error is encountered when renaming the file or directory.

The following code snippet illustrates how to implement fs calls to rename a file named old.txt to new.txt and a directory named testDir to renamedDir:

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fs.rename("old.txt", "new.txt", function(err){
  console.log(err ? "Rename Failed" :  "File Renamed");
});
fs.rename("testDir", "renamedDir", function(err){
  console.log(err ? "Rename Failed" :  "Folder Renamed");
});