I'm using this module, and getting the following error on ec2 linux instance
/home/centos/test/node_modules/is-ec2/index.js:8
return exec(command).toString().trim() === 'ec2';
^
TypeError: undefined is not a function
at module.exports (/home/centos/test/node_modules/is-ec2/index.js:8:10)
at Object. (/home/centos/test/index.js:6:4)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:935:3