Minimal Swift command line Hello World

swift.sh

#!/bin/sh
# So you've installed XCode 6 Beta
# Now we could use Swift toolchain to build a minimal
# command line Hellow World

# let's set new Developer Toolchain bundled with Xcode6-Beta.app
# as default toolchain
# sudo xcode-select -s /Applications/Xcode6-Beta.app/Contents/Developer

# alias for Swift binary
# export SWIFT=/Applications/Xcode6-Beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift

# simple program
#echo 'println("Hello World")' > swifthello.swift

# build stuff
#$SWIFT -sdk $(xcrun --show-sdk-path --sdk macosx) swifthello.swift

## Thanks to @caius, lines 10-17 now obsolete. Just use `xcrun'

echo 'println("Hello World")' > swifthello.swift

xcrun swift swifthello.swift

# run stuff
./swifthello

# By the way, Swift had a lot of options, invoke with `xcrun swift --help'

# Hope that helps

echo 'print("Hello World")' | swift