Calling an external command in Swift

Question

How can I call an external command (launch a subprocess) from a Swift script?

Perhaps something like call(["ls", "-l"]) in Python.

Linus Unnebäck · Accepted Answer · 2018-04-10 15:42:01Z

20

You can still use NSTask in Swift. Your example would be something like this.

let task = NSTask() task.launchPath = "/bin/ls" task.arguments = ["-l"] task.launch()

Swift 3+, macOS 10.13+

let task = Process() task.executableURL = URL(fileURLWithPath: "/bin/ls") task.arguments = ["-l"] task.run()

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answered Jun 20, 2014 at 22:50

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2 Comments

Ah yeah. duh.. Still wrapping my head around this thing :)

This is outdated: use Process with Swift 3.