Step 1
apt-get install pkg-config zip g++ zlib1g-dev unzip python
Step 2
Get the latest Basel installer URL from the Basel GitHub releases page: /github.com/bazelbuild/bazel/releases
Step 3
wget https://github.com/bazelbuild/bazel/releases/download/0.25.0/bazel-0.25.0-installer-linux-x86_64.sh
chmod +x bazel-0.25.0-installer-linux-x86_64.sh
./bazel-0.25.0-installer-linux-x86_64.sh