To rename a file synchronously, you can use the renameSync() function from the fs (filesystem) module in Nodejs.

// Rename file synchronously
fs.renameSync("file.txt", "myFile.txt");

Let's say you want to rename a file called file.txt inside the docs directory, so the path to it looks like this,

// path to rename
const path = "./docs/file.txt";

Let's rename the file.txt to myfile.txt. So let's create another variable to hold the new filename path like this,

// path to rename
const path = "./docs/file.txt";

// new file name
const newFileNamePath = "./docs/myFile.txt";

Now we can use the renameSync() synchronous function and pass:

• the path as the first argument
• and the newFileNamePath as the second argument

It can be done like this,

// require fs module
const fs = require("fs");

// path to rename
const path = "./docs/file.txt";

// new file name
const newFileNamePath = "./docs/myFile.txt";

// rename file.txt to myFile.txt
// using the renameSync() synchronous function
fs.renameSync(path, newFileNamePath);

And we have successfully renamed our file 🔥.

See this example live in repl.it.

Feel free to share if you found this useful 😃.

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