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20161203-2 选题
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httpstat – A Curl Statistics Tool to Check Website Performance
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============================================================
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httpstat is a Python script that reflects curl statistics in a fascinating and well-defined way, it is a single file which is compatible with Python 3 and requires no additional software (dependencies) to be installed on a users system.
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It is fundamentally a wrapper of cURL tool, means that you can use several valid cURL options after a URL(s), excluding the options -w, -D, -o, -s, and -S, which are already employed by httpstat.
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[
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][5]
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httpstat Curl Statistics Tool
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You can see in the above image an ASCII table displaying how long each process took, and for me the most important step is “server processing” – if this number is higher, then you need to [tune your server to speed up website][6].
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For website or server tuning you can check our articles here:
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1. [5 Tips to Tune Performance of Apache Web Server][1]
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2. [Speed Up Apache and Nginx Performance Upto 10x][2]
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3. [How to Boost Nginx Performance Using Gzip Module][3]
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4. [15 Tips to Tune MySQL/MariaDB Performance][4]
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Grab httpstat to check out your website speed using following instillation instructions and usage.
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### Install httpstat in Linux Systems
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You can install httpstat utility using two possible methods:
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1. Get it directly from its Github repo using the [wget command][7] as follows:
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```
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$ wget -c https://raw.githubusercontent.com/reorx/httpstat/master/httpstat.py
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```
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2. Using pip (this method allows httpstat to be installed on your system as a command) like so:
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```
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$ sudo pip install httpstat
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```
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Note: Make sure pip package installed on the system, if not install it using your distribution package manager [yum][8] or [apt][9].
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### How to Use httpstat in Linux
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httpstat can be used according to the way you installed it, if you directly downloaded it, run it using the following syntax from within the download directory:
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```
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$ python httpstat.py url cURL_options
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```
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In case you used pip to install it, you can execute it as a command in the form below:
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```
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$ httpstat url cURL_options
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```
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To view the help page for httpstat, issue the command below:
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```
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$ python httpstat.py --help
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OR
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$ httpstat --help
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```
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httpstat help
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```
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Usage: httpstat URL [CURL_OPTIONS]
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httpstat -h | --help
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httpstat --version
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Arguments:
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URL url to request, could be with or without `http(s)://` prefix
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Options:
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CURL_OPTIONS any curl supported options, except for -w -D -o -S -s,
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which are already used internally.
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-h --help show this screen.
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--version show version.
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Environments:
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HTTPSTAT_SHOW_BODY Set to `true` to show response body in the output,
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note that body length is limited to 1023 bytes, will be
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truncated if exceeds. Default is `false`.
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HTTPSTAT_SHOW_IP By default httpstat shows remote and local IP/port address.
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Set to `false` to disable this feature. Default is `true`.
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HTTPSTAT_SHOW_SPEED Set to `true` to show download and upload speed.
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Default is `false`.
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HTTPSTAT_SAVE_BODY By default httpstat stores body in a tmp file,
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set to `false` to disable this feature. Default is `true`
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HTTPSTAT_CURL_BIN Indicate the curl bin path to use. Default is `curl`
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from current shell $PATH.
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HTTPSTAT_DEBUG Set to `true` to see debugging logs. Default is `false`
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```
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From the output of the help command above, you can see that httpstat has a collection of useful environmental variables that influence its behavior.
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To use them, simply export the variables with the appropriate value in the `.bashrc` or `.zshrc` file.
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For instance:
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```
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export HTTPSTAT_SHOW_IP=false
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export HTTPSTAT_SHOW_SPEED=true
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export HTTPSTAT_SAVE_BODY=false
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export HTTPSTAT_DEBUG=true
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```
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Once your are done adding them, save the file and run the command below to effect the changes:
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```
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$ source ~/.bashrc
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```
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You can as well specify the cURL binary path to use, the default is curl from current shell [$PATH environmental variable][10].
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Below are a few examples showing how httpsat works.
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```
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$ python httpstat.py google.com
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OR
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$ httpstat google.com
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```
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[
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][11]
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httpstat – Showing Website Statistics
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In the next command:
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1. `-x` command flag specifies a custom request method to use while communicating with the HTTP server.
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2. `--data-urlencode` data posts data (a=b in this case) with URL-encoding turned on.
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3. `-v` enables a verbose mode.
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```
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$ python httpstat.py httpbin.org/post -X POST --data-urlencode "a=b" -v
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```
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[
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][12]
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httpstat – Custom Post Request
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You can look through the cURL man page for more useful and advanced options or visit the httpstatGithub repository: [https://github.com/reorx/httpstat][13]
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In this article, we have covered a useful tool for monitoring cURL statistics is a simple and clear way. If you know of any such tools out there, do not hesitate to let us know and you can as well ask a question or make a comment about this article or httpstat via the feedback section below.
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--------------------------------------------------------------------------------
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via: http://www.tecmint.com/httpstat-curl-statistics-tool-check-website-performance/
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作者：[Aaron Kili][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:http://www.tecmint.com/author/aaronkili/
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[1]:http://www.tecmint.com/apache-performance-tuning/
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[2]:http://www.tecmint.com/install-mod_pagespeed-to-boost-apache-nginx-performance/
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[3]:http://www.tecmint.com/increase-nginx-performance-enable-gzip-compression-module/
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[4]:http://www.tecmint.com/mysql-mariadb-performance-tuning-and-optimization/
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[5]:http://www.tecmint.com/wp-content/uploads/2016/12/httpstat-Curl-Statistics-Tool.png
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[6]:http://www.tecmint.com/apache-performance-tuning/
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[7]:http://www.tecmint.com/10-wget-command-examples-in-linux/
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[8]:http://www.tecmint.com/20-linux-yum-yellowdog-updater-modified-commands-for-package-mangement/
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[9]:http://www.tecmint.com/apt-advanced-package-command-examples-in-ubuntu/
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[10]:http://www.tecmint.com/set-unset-environment-variables-in-linux/
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[11]:http://www.tecmint.com/wp-content/uploads/2016/12/httpstat.png
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[12]:http://www.tecmint.com/wp-content/uploads/2016/12/httpstat-Post-Request.png
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[13]:https://github.com/reorx/httpstat
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