Share a Linux environment, powerful Python gadgets

Scenes

• Linux users often need to see some data in the terminal, watching from a file or network protocol to obtain data and see. For example, to view the documents in the json data; for example, in view etcd able to save the data.
• If you look at the data obtained by direct cat or curl, a mess if the format will be very painful, and the python json.tool can get data formatted in the terminal. Of the form: cat json.file | python -m json.tool

#### usage and examples

# 终端操作 ，

vim  json.file

# 写入 如下内容：    { "code": 0,"data": "fine","error": "success" }

At this point the content of cat json.file see:

{ "code": 0,"data": "fine","error": "success" }

Written into the sawed, sawed it!

At this time, try to spend this tool

#终端执行
cat json.file | python -m json.tool
    
# 看到的内容会变成这样：

{
    "code": 0,
    "data": "fine",
    "error": "success"
}

Then try again etcd data view.

# 直接 curl 一下： 
curl localhost:2379/v2/keys

# 拿到这个
{"action":"get","node":{"dir":true,"nodes":[{"key":"/NSQMetaData","dir":true,"modifiedIndex":5,"createdIndex":5},{"key":"/b2c_systech_nsq","dir":true,"modifiedIndex":6726335,"createdIndex":6726335},{"key":"/hello","value":"world","modifiedIndex":4,"createdIndex":4}]}}

# 加上工具

curl localhost:2379/v2/keys |python -m json.tool

# 拿到这个

{
    "action": "get",
    "node": {
        "dir": true,
        "nodes": [
            {
                "createdIndex": 5,
                "dir": true,
                "key": "/NSQMetaData",
                "modifiedIndex": 5
            },
            {
                "createdIndex": 6726335,
                "dir": true,
                "key": "/b2c_systech_nsq",
                "modifiedIndex": 6726335
            },
            {
                "createdIndex": 4,
                "key": "/hello",
                "modifiedIndex": 4,
                "value": "world"
            }
        ]
    }
}

Yet, this little tool to help in the terminal environment is still very large, it is worth learning.