How to get the executable path of a command line tool in Objective C (Foundation framework)?

I'm trying to work out a way to identify the executable path of a command line t开发者_如何学运维ool in Objective C.

Hence, if the executable is /Applications/Utils/MyTool, then that method would return /Applications/Utils

I'm using the Foundation framework.

Call me a purist - or a bundle-hater - if you must.. but I "like"

NSString *myLittleCLIToolPath = NSProcessInfo.processInfo.arguments[0];

I'm assuming that by /Applications/Utils/MyTool, you mean an application named "MyTool" in the "Utils" directory within the "Application" directory (which is actually the path /Applications/Utils/MyTools.app). In that case, you could get the directory in which the application resides (/Applications/Utils) with the following bit of code:

NSString *appParentDirectory = [[[NSBundle mainBundle] bundlePath] stringByDeletingLastPathComponent];

Here's a Swift version of @mipadi's answer:

let appParentDirectory = Bundle.main.bundleURL.deletingLastPathComponent()

^{Documentation: Bundle.main.bundleURL.deletingLastPathComponent()}

And of @AlexGray's answer:

let myLittleCliToolPath = ProcessInfo.processInfo.arguments.first

^{Documentation: ProcessInfo.processInfo.arguments.first}

Note that this one results in an optional string. It's likely that you got the path successfully, but not 100% guaranteed, so you could also use one of these as a backup (which also return optionals) if you have access to AppKit, or the aforementioned Bundle approach (which does not):

NSRunningApplication.current.bundleURL?.deletingLastPathComponent()

^{Documentation: NSRunningApplication.current.bundleURL.deletingLastPathComponent()}

NSRunningApplication.current.executableURL?.deletingLastPathComponent()

^{Documentation: NSRunningApplication.current.executableURL.deletingLastPathComponent()}