Execute shell command from swift

ShellCommand.swift

//
//  ShellCommand.swift
//
//  Created by Koki Ibukuro on 9/19/15.
//  Copyright © 2015 asus4. All rights reserved.
//

import Foundation

public struct ShellCommand {

    // Export command sync
    static public func execute(cmdPath: String, args: String...) -> String {
        let task = NSTask()
        task.launchPath = cmdPath
        task.arguments = args

        let outPipe = NSPipe()
        task.standardOutput = outPipe
        task.launch()

        let output = outPipe.fileHandleForReading.readDataToEndOfFile()
        guard let outstr: String =
            NSString(data: output, encoding: NSUTF8StringEncoding) as String? else {
            return ""
        }
        return outstr
    }
}