Create an IPA from an Xcode project.

exportOptions.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
  <dict>
    <key>method</key>
    <string>development</string>
    <key>compileBitcode</key>
    <false/>
	</dict>
</plist>

ipa.sh

#!/usr/bin/env bash

NAME=Example

# Create .xcarchive
xcodebuild -sdk iphoneos archive

# Create .ipa
xcodebuild -exportArchive -archivePath /tmp/${NAME}.xcarchive -exportOptionsPlist exportOptions.plist -exportPath /tmp/