High level ones:
let s = try String(contentsOfFile: filename, encoding: .utf8)
try s.write(toFile: filename, atomically: true, encoding: .utf8)
Low level ones:
import Foundation
let fileManager = FileManager.default()
guard let enumerator = fileManager.enumerator(atPath: path) else { fatalError()
}
if !fileManager.fileExists(atPath: filename) {
fileManager.createFile(atPath: filename, contents: nil, attributes: nil)
}
guard let outFile = FileHandle(forWritingAtPath: filename) else { fatalError() }
defer {
outFile.closeFile()
}
outFile.truncateFile(atOffset: 0)
guard let data = str.data(using: .utf8) else { fatalError() }
outFile.write(data)
This used to work on Linux.
Andrey
> On 17 Jul 2016, at 02:33, K Richard Pixley via swift-users
> <swift-users@swift.org> wrote:
>
> I'm a new swift person, long time unix/linux developer, mac user but only mac
> developer inasmuch as mac is unix. I've installed swift on my ubuntu box,
> written hello world, etc.
>
> Now... to write much of anything else, I need a way to open/read/write/close
> a file. I don't see anything like that in the swift standard library, (aside
> from print()). And I don't see anything in the way of documentation for the
> Core Library.
>
> How do I do i/o in swift?
>
> I'm not thinking in terms of "an app", just a simple, read from stdin, write
> to stdout filter. How?
>
> Pointers welcome.
>
> --rich
> _______________________________________________
> swift-users mailing list
> swift-users@swift.org
> https://lists.swift.org/mailman/listinfo/swift-users
_______________________________________________
swift-users mailing list
swift-users@swift.org
https://lists.swift.org/mailman/listinfo/swift-users
