About how to download the linaro arndale-octa source

Hello , i am a new beginnger, i use the command.sh,listed below:

export MANIFEST_REPO=git://android.git.linaro.org/platform/manifest.git export MANIFEST_BRANCH=linaro_android_4.4.2 export MANIFEST_FILENAME=arndale-octa.xml repo init -u ${MANIFEST_REPO} -b ${MANIFEST_BRANCH} -m ${MANIFEST_FILENAME} --repo-url=git://android.git.linaro.org/tools/repo -g common,arndale-octa

and now it looks like download all the source except u-boot and kernel source, meanwhile I don't know how to build source, offical website says it provides user a shell file "linaro_android_build_cmds.sh" ,but i can't find it,I need some help for how to start this. Thanks very much !!

jefby