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echo 'encode this' | jq -sRr @uri | sed -r 's/^(.*)$/<iframe border=0 frameborder=0 height=250 width=550 src="https:\/\/twitframe.com\/show?url=\1"><\/iframe>/g'

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链接列表来自《程序员修炼之道：通向务实的最高境界（第2版）》的中文出版社官网，在「下载资源」中可以找到。

条目序号	章序号	链接网址	页码
0.1	序	https://pragprog.com/titles/tpp20	VIII
1.1	1	http://wiki.c2.com/?ChangeYourOrganization	3
1.2	1	http://dx.doi.org/10.1037/apl0000110	4
1.3	1	https://pragprog.com	16
2.1	2	https://github.com/OAI/OpenAPI-Specification	38
2.2	2	https://rspec.info	61

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bash subenv.sh

bash subexp.sh

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version: '3'
services:
  nginx:
    image: nginx:1.17.5-alpine
    ports:
      - 80:80
      - 443:443
    volumes:
      - ./conf.d:/etc/nginx/conf.d
      - ./log:/var/log/nginx

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FROM alpine:3.9

RUN apk add --no-cache tzdata  //
ENV TZ=Asia/Shanghai
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

CMD date

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https://doc.rust-lang.org/book/ch16-02-message-passing.html#using-message-passing-to-transfer-data-between-threads

We’ve used recv in this example for simplicity; we don’t have any other work for the main thread to do other than wait for messages, so blocking the main thread is appropriate.

Then I have a try to implement it with try_recv.

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Find current directory and file's directory

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the file constant is relative to the current working directory and is not changed by an os.chdir() call.)

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英语中的数学表达

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sudo netstat -plnt

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Pulling Git Submodule in git project

reference

• stack overflow