Xcode

Checking Xcode SDK Path

Will check whether SDK is linked with path. Command Line tools should be installed and symlinked with path.

xcrun -k --sdk iphoneos --show-sdk-path

Installing Command Line tools

This command would install the Command line tools on the machine.

xcrun -k --sdk iphoneos --show-sdk-path

Multiple Xcode Developer tools

If you have multiple versions of the Apple developer tools installed (an Xcode beta, for example), use xcode-select to change which version xcode or other build tool uses.

Show which xcode path is being used in Command Line Tools.

xcode-select -p