ENV_BUILD_NUMBER=`cat ./buildNumber.txt` ENV_BUILD_VERSION=`cat ./buildVersion.txt` # Use double quotes so variables are expanded sed -i "s/^\(def VERSION_CODE = \).*/\1${ENV_BUILD_NUMBER}/" android/app/build.gradle sed -i "s/^\(def VERSION_NAME = \).*/\1\"${ENV_BUILD_VERSION}\"/" android/app/build.gradle sed -i 's/"version": "[^"]*"/"version": "'${ENV_BUILD_VERSION}'"/' ./package.json sed -i 's/"buildNumber": "[^"]*"/"buildNumber": "'${ENV_BUILD_NUMBER}'"/' ./package.json