diff --git a/SwiftShell/Files.swift b/SwiftShell/Files.swift
index 6b109cc..5825d40 100644
--- a/SwiftShell/Files.swift
+++ b/SwiftShell/Files.swift
@@ -24,7 +24,7 @@ It lies in the user's temporary directory and will be automatically deleted at s
 */
 public let tempdirectory: String = {
 	var error: NSError?
-	let tempdirectory = NSTemporaryDirectory().stringByAppendingPathComponent("SwiftShell-" + NSProcessInfo.processInfo().globallyUniqueString)
+	let tempdirectory = NSTemporaryDirectory() / "SwiftShell-" + NSProcessInfo.processInfo().globallyUniqueString
 	NSFileManager.defaultManager()
 		.createDirectoryAtPath(tempdirectory, withIntermediateDirectories:true, attributes: nil, error: &error)
 	if let error = error {
@@ -50,3 +50,9 @@ public var workdirectory: String {
 		}
 	}
 }
+
+
+/** Allows for `"/directory" / "file.extension"` etc. */
+public func / (leftpath: String, rightpath: String) -> String {
+	return toURLOrError(leftpath).URLByAppendingPathComponent(rightpath).path!
+}
diff --git a/SwiftShellTests/Files_Tests.swift b/SwiftShellTests/Files_Tests.swift
index 393b673..afc08e8 100644
--- a/SwiftShellTests/Files_Tests.swift
+++ b/SwiftShellTests/Files_Tests.swift
@@ -25,4 +25,10 @@ class Files_Tests: XCTestCase {
 		XCTAssertEqual( workdirectory, "/private/tmp" )
 		XCTAssertEqual( $("pwd"), "/private/tmp" )
 	}
+
+	func testURLConcatenationOperator () {
+		XCTAssertEqual( "/directory" / "file.extension", "/directory/file.extension" )
+		XCTAssertEqual( "/root" / "directory" / "file.extension", "/root/directory/file.extension" )
+		XCTAssertEqual( "directory" / "file.extension", workdirectory + "/directory/file.extension" )
+	}
 }
diff --git a/SwiftShellTests/Scripts/readandwritefiles.swift b/SwiftShellTests/Scripts/readandwritefiles.swift
index c361fd8..03a8982 100755
--- a/SwiftShellTests/Scripts/readandwritefiles.swift
+++ b/SwiftShellTests/Scripts/readandwritefiles.swift
@@ -2,7 +2,7 @@
 
 import SwiftShell
 
-let filepath = tempdirectory + "/newfile.txt"
+let filepath = tempdirectory / "newfile.txt"
 
 // File doesn't exist. Create it.
 let file1 = open(forWriting: filepath )