How to run executable file in Ubuntu as a command or service (with Node.js child_process.spawn())?

First, similar questions, no answers:

Node.js child_process.spawn() fail to run executable file

node.js child_process.spawn ENOENT error – only under supervisord

I have an executable file with .linux extension. It is http server.

service.linux

I can run it like this:

$ ./service.linux
2018/01/11 18:32:56 listening on port 8080

But since it is not a command, I cannot start it as a spawned process:

let cp = spawn('service.linux', [], { cwd: __dirname });

The errors I get is:

service.linux: command not found

ERROR: Error: spawn service.linux ENOENT

How can I run it as a command? Or should I use some other command to run it, like:

$ start service.linux

UPD:

$ file service.linux 
service.linux: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), statically linked, not stripped

UPD:

It needs absolute path:

const path = require('path');
let cp = spawn(path.resolve(__dirname, `service.linux`), [], { cwd: __dirname });

Solution:

This is a path issue, node is unable to find service.linux file, use absolute path, issue will be resolved