当前环境：
operate system: Ubuntu 14.04.1 LTS
protoc --version: libprotoc 2.5.0
protocol-buffers version:2.6.1
按照 https://github.com/google/protobuf 的 README.md 流程看的糊涂， 一直在寻找更方便的安装方式。
步骤：
1) 关于pypi: https://pypi.python.org/pypi/protobuf/2.6.1 即可通过 pip install protobuf 方式安装。
验证：
$ python Python 2.7.6 (default, Jun 22 2015, 17:58:13) [GCC 4.8.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import google.protobuf >>>
2) 关于protobuf-compiler: apt-get install protobuf-compiler
$ apt-get install protobuf-compiler $ $ protoc --help Usage: protoc [OPTION] PROTO_FILES Parse PROTO_FILES and generate output based on the options given: -IPATH, --proto_path=PATH Specify the directory in which to search for imports. May be specified multiple times; directories will be searched in order. If not given, the current working directory is used. --version Show version info and exit. -h, --help Show this text and exit. --encode=MESSAGE_TYPE Read a text-format message of the given type from standard input and write it in binary to standard output. The message type must be defined in PROTO_FILES or their imports. --decode=MESSAGE_TYPE Read a binary message of the given type from standard input and write it in text format to standard output. The message type must be defined in PROTO_FILES or their imports. --decode_raw Read an arbitrary protocol message from standard input and write the raw tag/value pairs in text format to standard output. No PROTO_FILES should be given when using this flag. -oFILE, Writes a FileDescriptorSet (a protocol buffer, --descriptor_set_out=FILE defined in descriptor.proto) containing all of the input files to FILE. --include_imports When using --descriptor_set_out, also include all dependencies of the input files in the set, so that the set is self-contained. --include_source_info When using --descriptor_set_out, do not strip SourceCodeInfo from the FileDescriptorProto. This results in vastly larger descriptors that include information about the original location of each decl in the source file as well as surrounding comments. --error_format=FORMAT Set the format in which to print errors. FORMAT may be 'gcc' (the default) or 'msvs' (Microsoft Visual Studio format). --plugin=EXECUTABLE Specifies a plugin executable to use. Normally, protoc searches the PATH for plugins, but you may specify additional executables not in the path using this flag. Additionally, EXECUTABLE may be of the form NAME=PATH, in which case the given plugin name is mapped to the given executable even if the executable's own name differs. --cpp_out=OUT_DIR Generate C++ header and source. --java_out=OUT_DIR Generate Java source file. --python_out=OUT_DIR Generate Python source file.
详情如下：
$ apt-get install protobuf-compiler Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be installed: libprotobuf8 libprotoc8 The following NEW packages will be installed: libprotobuf8 libprotoc8 protobuf-compiler 0 upgraded, 3 newly installed, 0 to remove and 1 not upgraded. Need to get 550 kB of archives. After this operation, 2,133 kB of additional disk space will be used. Do you want to continue? [Y/n] y Get:1 http://mirrors.aliyun.com/ubuntu/ trusty/main libprotobuf8 amd64 2.5.0-9ubuntu1 [296 kB] Get:2 http://mirrors.aliyun.com/ubuntu/ trusty/main libprotoc8 amd64 2.5.0-9ubuntu1 [235 kB] Get:3 http://mirrors.aliyun.com/ubuntu/ trusty/main protobuf-compiler amd64 2.5.0-9ubuntu1 [19.8 kB] Fetched 550 kB in 0s (608 kB/s) Selecting previously unselected package libprotobuf8:amd64. (Reading database ... 38145 files and directories currently installed.) Preparing to unpack .../libprotobuf8_2.5.0-9ubuntu1_amd64.deb ... Unpacking libprotobuf8:amd64 (2.5.0-9ubuntu1) ... Selecting previously unselected package libprotoc8:amd64. Preparing to unpack .../libprotoc8_2.5.0-9ubuntu1_amd64.deb ... Unpacking libprotoc8:amd64 (2.5.0-9ubuntu1) ... Selecting previously unselected package protobuf-compiler. Preparing to unpack .../protobuf-compiler_2.5.0-9ubuntu1_amd64.deb ... Unpacking protobuf-compiler (2.5.0-9ubuntu1) ... Processing triggers for man-db (2.6.7.1-1ubuntu1) ... Setting up libprotobuf8:amd64 (2.5.0-9ubuntu1) ... Setting up libprotoc8:amd64 (2.5.0-9ubuntu1) ... Setting up protobuf-compiler (2.5.0-9ubuntu1) ... Processing triggers for libc-bin (2.19-0ubuntu6.6) ... $ $ protoc // 不报错说明成功
应用：
安装成功后即可按照https://developers.google.com/protocol-buffers/docs/pythontutorial?hl=zh-cn 教程开始使用。
疑问：
关于如何在centos 7/ Mac OS X 操作系统中安装 protobuf-compiler 的简便方法 还未找到方法。再更新吧。