Find the type of the file/folder passed to the CLI in nodejs

Question

I'm creating a CLI app and using commander to process the commands entered by the user.

program
.option('-i , --index', 'file ') // option for adding a file/folder
const options = program.opts();
if(option.index){ // do sth }

And the user can enter node index.js --index "Silver Blaze".txt or pass a folder node index.js --index "my folder"

How do I find out the type of the value passed (if it is a file or folder)?

Tamas Szoke · Accepted Answer · 2021-09-16T22:05:51.417

1

You can use the fs module for that.

Example

let fs = require('fs')
let stats = fs.statSync(/* Path to file/folder */)

let isFile = stats.isFile()
let isDir = stats.isDirectory()

if (isFile) {
  // File
} else if (isDir) {
  // Directory
}

More information

edited Sep 16 '21 at 22:05

answered Sep 16 '21 at 21:17

Tamas Szoke

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Thanks this helped. Though it should be fs.statSync(process.argv[3]) option.index just returns a bollean – NateR Sep 16 '21 at 21:48
Oh, I see. Modified the answer according to this. – Tamas Szoke Sep 16 '21 at 21:58

Find the type of the file/folder passed to the CLI in nodejs

1 Answers1