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shell script

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iPython

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subprocess

pwnlib.tubes.process

Level 16 - stdin

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subprocess

pwnlib.tubes.process

Level 17 - args

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subprocess

pwnlib.tubes.process

Level 18 - env

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subprocess

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subprocess

pwnlib.tubes.process

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Link to Notes

Reference

Bash

env

Understanding locale environment variables

Multicultural support uses several environment variables to influence the selection of locales. You can set the values of these variables to change search paths for locale information:

https://www.ibm.com/docs/en/aix/7.1?topic=locales-understanding-locale-environment-variables

How To Read and Set Environmental and Shell Variables on Linux | DigitalOcean

In Linux systems, environmental and shell variables are used to determine operating conditions for the shell. They can be passed down to child processes and…

How To Read and Set Environmental and Shell Variables on Linux | DigitalOcean

https://www.digitalocean.com/community/tutorials/how-to-read-and-set-environmental-and-shell-variables-on-linux

How To Read and Set Environmental and Shell Variables on Linux | DigitalOcean

read

How To Use The Bash read Command {10 Examples}

This guide shows how to use the Bash read command to work with user inputs through 10 easy examples in the terminal.

https://phoenixnap.com/kb/bash-read

How To Use The Bash read Command {10 Examples}

Python

python subprocess

An Introduction to Python Subprocess: Basics and Examples

Explore our step-by-step guide to running external commands using Python's subprocess module, complete with examples.

https://www.datacamp.com/tutorial/python-subprocess

subprocess --- 子行程管理

原始碼： Lib/subprocess.py subprocess 模块允许你生成新的进程，连接它们的输入、输出、错误管道，并且获取它们的返回码。此模块打算代替一些老旧的模块与功能：在下面的段落中，你可以找到关于 subprocess 模块如何代替这些模块和功能的相关信息。可用性: 非 Emscripten，非 WASI。此模組在 WebAssembly 平台 wasm32-emscr...

https://docs.python.org/zh-tw/3/library/subprocess.html

subprocess --- 子行程管理

Python3 subprocess | 菜鸟教程

subprocess 模块允许我们启动一个新进程，并连接到它们的输入/输出/错误管道，从而获取返回值。使用 subprocess 模块 subprocess 模块首先推荐使用的是它的 run 方法，更高级的用法可以直接使用 Popen 接口。 run 方法语法格式如下： subprocess.run(args, *, stdin=None, input=None, stdout=None, stderr=None, cap..

https://www.runoob.com/w3cnote/python3-subprocess.html

call & popen

https://blog.51cto.com/u_14320361/2491366

Python 呼叫其他程式

今天在寫一隻要用在 coursera 某個課程作業的 auto testing 的程式，因為作業裡面給的皮是一隻很單純的 py 程式，資料的讀入跟結果都用 stdin 跟 stdout，為了配合他資料傳遞的方式 (用 stdin 跟 stdout)，所以我也剛好研究了一下怎麼在…

https://medium.com/@alan81920/python-呼叫其他程式-18a202c8b700

Python 呼叫其他程式

How to set environments variables while running a subprocess.call?

I am trying to run a command, which will be invoked in a different shell via subprocess.call(). Execution of this command expects certain env vars. I have set these variables in a .csh file and try...

https://stackoverflow.com/questions/76377466/how-to-set-environments-variables-while-running-a-subprocess-call

Python 3: Standard Input with subprocess.run() — Computer Science Atlas

https://csatlas.com/python-subprocess-run-stdin/

subprocess.Popen之preexec_fn参数 - 凉城旧巷 - 博客园

subprocess.Popen之preexec_fn参数 1、场景 Python 标准库 subprocess.Popen 是 shellout 一个外部进程的首选，它在 Linux/Unix 平台下的实现方式是 fork 产生子进程然后 exec 载入外部可执行程序。于是问题就来了，如果我们需

https://www.cnblogs.com/linagcheng/p/15597279.html

subprocess.Popen stdin read file

I'm trying to call a process on a file after part of it has been read. For example: with open('in.txt', 'r') as a, open('out.txt', 'w') as b: header = a.readline() subprocess.call(['sort'], s...

https://stackoverflow.com/questions/22417010/subprocess-popen-stdin-read-file

How to use subprocess with PIPEs

In Python, the subprocess module allows you to execute linux/unix commands directly from Python. The official Python documentation is very useful would you need to go further. Yet it may be a bit scary for newbies. Syntax may also change from one Python version to the other.

https://thomas-cokelaer.info/blog/2020/11/how-to-use-subprocess-with-pipes/

Using input redirection with Popen in python

I need to use stream redirectiton in Popen call in python to use bat file with wine. I need make this: wine32 cmd < file.bat It works when I run it manually from terminal, however when I try to

https://stackoverflow.com/questions/28125255/using-input-redirection-with-popen-in-python

Python Popen communicate() 和wait()使用上的区别_python communicate-CSDN博客

文章浏览阅读8.8w次，点赞20次，收藏43次。之所以会纠结到这个问题上是因为发现在调用Popen的wait方法之后程序一直没有返回。google发现wait是有可能产生死锁的。为了把这个问题彻底弄清楚，搜索一些资料过来看看：看到别人的例子：今天遇到的一个问题。简单说就是，使用 subprocess 模块的 Popen 调用外部程序，如果 stdout 或 stderr 参数是 pipe，并且程序输出超过操作系统的 pipe _python communicate

https://blog.csdn.net/carolzhang8406/article/details/22286913

python string to bytes

Python string 轉 bytes 的 3 種方法

本篇 ShengYu 介紹 Python string 轉 bytes 的 3 種方法，以下 Python 字串轉 bytes 的方法將分為這幾種， Python 在字串前面加上 b Python bytes 類別建構子 Python str.encode() 成員函式那我們開始吧！ Python 在字串前面加上 b在 Python 3 中在字串前面加上 b 表示這

https://shengyu7697.github.io/python-string-to-bytes/

python tempfile

Renaming temporary files in Python

I want to do the following. Create a temporary file and work on it. If successful, rename it to a real file. If it fails, then delete the file. I tried the following: with tempfile.NamedTemporaryFi...

https://stackoverflow.com/questions/68920021/renaming-temporary-files-in-python

tempfile --- 生成臨時檔案和目錄

原始碼： Lib/tempfile.py 該 module（模組）用於建立臨時檔案和目錄，它可以在所有有支援的平臺上使用。 TemporaryFile 、 NamedTemporaryFile 、 TemporaryDirectory 和 SpooledTemporaryFile 是有自動清除功能的高階介面，可作為情境管理器 (context manager) 使用。 mkstemp() ...

https://docs.python.org/zh-tw/3/library/tempfile.html#tempfile.NamedTemporaryFile

tempfile --- 生成臨時檔案和目錄

python open

Python open() 函数 | 菜鸟教程

Python open() 函数 Python 内置函数 python open() 函数用于打开一个文件，创建一个 file 对象，相关的方法才可以调用它进行读写。更多文件操作可参考：Python 文件I/O。函数语法 open(name[, mode[, buffering]]) 参数说明： name : 一个包含了你要访问的文件名称的字符串值。 mode : mode 决定了打开文件的模式：只读，写入，追加等。..

https://www.runoob.com/python/python-func-open.html

pwntools

pwnlib.tubes.process — 进程 — pwntools 3.12.0dev 文档

Spawns a new process, and wraps it with a tube for communication.

https://pwntools-docs-zh.readthedocs.io/zh-cn/dev/tubes/processes.html

fork/exec system call

UNIX 作業系統 fork/exec 系統呼叫的前世今生 - HackMD

本文不僅探究 UNIX 系統的 fork 和 exec 的淵源，並廣泛剖析 fork, exec, exit, wait 等系統呼叫間的緊密聯繫。此外，本文也討論 Linux 核心如何透過 clone 系統呼叫，對 UNIX 的 fork 系統呼叫進行創新詮釋，強調唯有洞悉歷史，才能洞見未來。

https://hackmd.io/@sysprog/unix-fork-exec

UNIX 作業系統 fork/exec 系統呼叫的前世今生 - HackMD

Linux下Fork与Exec使用 - hicjiajia - 博客园

一、引言　　对于没有接触过Unix/Linux操作系统的人来说，fork是最难理解的概念之一：它执行一次却返回两个值。fork函数是Unix系统最杰出的成就之一，它是七十年代UNIX早期的开发者经过长期在理论和实践上的艰苦探索后取得的成果，一方面，它使操作系统在进程管理上付出了最小的代价，另一方面，

https://www.cnblogs.com/hicjiajia/archive/2011/01/20/1940154.html

execlp、execvp用法與範例

execlp和execvp是linux的system call 是用來執行指定執行檔的函數這裡是他們相關的linux man page

https://burweisnote.blogspot.com/2017/08/execlpexecvp.html

execlp、execvp用法與範例

How to use execv system call in linux?

I am writing a program using execl to execute my exe file which is testing and it's work very well and display the output in the Linux CLI. But I have not idea how to change the execl to execv, alt...

https://stackoverflow.com/questions/32142164/how-to-use-execv-system-call-in-linux

Grabbing output from exec

I'm trying to write a C program that grabs command output and then i'll be passing that to another program. I'm having an issue, I cant work out how to get the command output and store it. Below i...

https://stackoverflow.com/questions/7292642/grabbing-output-from-exec

fork()、pipe()、dup2() 和 execlp() 的组合技法_多层fork dup2-CSDN博客

文章浏览阅读4.8k次。pipe()，父子进程之间通讯工具。pipe有读写两端，用int表搜索示。0-read, 1-write.一端进程将数据写入write内，另一进程由read段读出。使用参数为一个int数组，共两个元素，用以表示读写两端的状态。close()，用于关闭清空pipe某端，参数为表示pipe端口数组二元素之一。dup2()，用于redirection，将pipe某端与标准i/o相连，即_多层fork dup2

https://blog.csdn.net/victoryckl/article/details/17335661

exec family

The exec family of system calls :: Operating systems 2018

The exec family of system calls replaces the program executed by a process. When a process calls exec, all code (text) and data in the process is lost and replaced with the executable of the new program. Although all data is replaced, all open file descriptors remains open after calling exec unless explicitly set to close-on-exec. In the below diagram a process is executing Program 1. The program calls exec to replace the program executed by the process to Program 2.

https://www.it.uu.se/education/course/homepage/os/vt18/module-2/exec/

pipes/fork/dup2 system call

Pipes, Forks, & Dups: Understanding Command Execution and Input/Output Data Flow

Note: a basic familiarity with Unix commands and C/C++ is necessary to understand this post. My goal is to explain the flow of data between processes when running commands. If you want to jump directly to the pipeline stuff, click here.

https://www.rozmichelle.com/pipes-forks-dups/

Pipes, Forks, & Dups: Understanding Command Execution and Input/Output Data Flow

Linux的printf、fprintf、dprintf、sprintf、snprintf、vprintf系列

Linux的printf、fprintf、dprintf、sprintf、snprintf、vprintf系列_dpnixf-CSDN博客

文章浏览阅读1.2k次。printf, fprintf, sprintf, snprintf, vprintf, vfprintf, vsprintf, vsnprintf - formatted output conversion#include <stdio.h>int printf(const char *format, ...);int fprintf(FILE *stream, const char *format, ...);int dprintf(int fd, const char *fo._dpnixf

https://blog.csdn.net/wteruiycbqqvwt/article/details/112849432

execv

execv - man pages section 2: System Calls

exec, execl , execle , execlp , execv , execve , execvp , fexecve - execute a file

https://docs.oracle.com/cd/E86824_01/html/E54765/execv-2.html

進程（五）：exec系列函數（execl,execlp,execle,execv,execvp)使用-软件开发平台及语言笔记大全(超详细)

進程（五）：exec系列函數（execl,execlp,execle,execv,execvp)使用,软件开发平台及语言笔记大全(超详细)

https://www.cntofu.com/book/46/linux_system/linuxxi_tong_bian_cheng_zhi_jin_cheng_ff08_wu_ff09.md

exec函数族的详解 - 一只小菜菜鸟 - 博客园

参考：https://blog.csdn.net/liangxanhai/article/details/7759682?ops_request_misc=&request_id=&biz_id=102&utm_term=exec%E8%AF%A6%E8%A7%A3&

https://www.cnblogs.com/conefirst/articles/15117832.html

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