git rev-parse --abbrev-ref HEAD
git rev-parse HEAD # 获取完整的commit id
git rev-parse --short HEAD # 获取短commit id
sdk_commit_id=`git log --abbrev-commit --pretty=oneline -1 | cut -c 1-7` # 获取短commit id
原文：https://www.cnblogs.com/cristiano-duan/p/12682038.html