Exec command example node js

command.js

import { exec, ExecException } from "child_process";

export interface CommandResult {
  error: ExecException;
  stdout: string;
  stderr: string;
}

export class Command {
  constructor(public command: string = "") {}
  add(command: string) {
    this.command = this.command
      ? this.command.concat(` && ${command}`)
      : command;
    return this;
  }
  execute(): Promise<CommandResult> {
    return new Promise(resolve => {
      exec(this.command, (err, sout, serr) =>
        resolve({ error: err, stdout: sout, stderr: serr })
      );
    });
  }
  toString() {
    return this.command;
  }
}