var fs = require('fs'), path = require('path'), libDirPath, jqueryFilePath; libDirPath = path.join(__dirname, '../src/main/webapp/lib'); jqueryFilePath = path.join(libDirPath, 'jquery.min.js'); fs.exists(jqueryFilePath, function (exists) { if(exists) { fs.unlink(jqueryFilePath, function(err) { if(err) { throw err; } console.log('Successfully deleted jquery.min.js!'); }); } });