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https://github.com/kuninoto/42_minishell

Small implementation of a shell, truly hell
https://github.com/kuninoto/42_minishell

42 42-minishell 42-school 42born2code 42cursus 42minishell 42porto 42portugal 42projects 42school ecole42 minishell minishell-42 minishell42 school42 unix

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Small implementation of a shell, truly hell

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README 

        
# minishell (42Porto - 42Cursus) Linux Logo  C Logo   



#### Project done in collaboration with [ramos21rodrigo](https://github.com/ramos21rodrigo)



## Grade: 101/100



###  Demonstration:

![](./extras/showcase.gif)



### Installing and running the project:

1- Installing minishell dependencies:  



	sudo apt-get install make libreadline-dev

2- Clone this repository:  



	git clone https://github.com/Kuninoto/42_minishell

3- Navigate to _lvl_3_minishell_ and run `make`



	cd 42_minishell/lvl_3_minishell

	make

4- `make clean` so that you don't keep those object files that you won't need anymore  



	make clean

5- Run minishell



	./minishell



###  Subject: [minishell en_subject](./extras/en.subject_minishell.pdf)



#### Makefile Available Targets:  

`make` or `make all` - compiles minishell      

`make clean` - wipes all object files   

`make fclean` - deletes minishell and all object files   

`make re` - fclean  + all   



## Useful links

Understanding Bash/Shell behavior:  

- https://indradhanush.github.io/blog/writing-a-unix-shell-part-1/  

- https://indradhanush.github.io/blog/writing-a-unix-shell-part-2/  

- https://indradhanush.github.io/blog/writing-a-unix-shell-part-3/  

- https://www.gnu.org/software/bash/manual/html_node/Redirections.html  

- https://www.youtube.com/watch?v=ubt-UjcQUYg  

- https://www.youtube.com/watch?v=ZjzMdsTWF0U  

- https://www.youtube.com/watch?v=k6TTj4C0LF0  

- https://www.tutorialspoint.com/unix_system_calls/execve.htm  

- https://www.geeksforgeeks.org/signals-and-traps-in-unix/  

- https://www.tutorialspoint.com/unix/unix-signals-traps.htm  

- https://unix.stackexchange.com/questions/362559/list-of-terminal-generated-signals-eg-ctrl-c-sigint#362566  

- https://www.computerhope.com/jargon/r/relapath.htm  

- https://www.techopedia.com/definition/5817/absolute-path  

- https://www.ibm.com/docs/en/informix-servers/12.10?topic=products-term-environment-variable-unix  

- https://kinsta.com/knowledgebase/what-is-an-environment-variable/  

- https://linuxconfig.org/term-environment-variable-not-set-solution  

- https://www.cs.purdue.edu/homes/grr/SystemsProgrammingBook/Book/Chapter5-WritingYourOwnShell.pdf  

- http://www.cems.uwe.ac.uk/~irjohnso/coursenotes/lrc/system/shell/index.html  

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

- https://velog.io/@sham/minishell%EA%B3%BC-readline  

- https://github.com/Swoorup/mysh  



Parsing:  

- https://youtu.be/bxpc9Pp5pZM  

- https://youtu.be/r6vNthpQtSI  

- https://www.youtube.com/watch?v=dDtZLm7HIJs  

- https://www.youtube.com/watch?v=SToUyjAsaFk  

- https://github.com/mit-pdos/xv6-public/blob/master/sh.c  

- https://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html  



AST:  

- https://en.wikipedia.org/wiki/Abstract_syntax_tree  

- https://stackoverflow.com/questions/1721553/how-to-construct-an-abstract-syntax-tree  

- https://www.twilio.com/blog/abstract-syntax-trees  



Parsing/AST/Interpreter:  

- https://github.com/Swoorup/mysh  



## Disclaimer

> At [42School](https://en.wikipedia.org/wiki/42_(school)), almost every project must be written in accordance to the [Norm](./extras/en_norm.pdf), the schools' coding standard. As a result, the implementation of certain parts may appear strange and for sure had room for improvement.



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Made by Nuno Carvalho (Kuninoto) | [email protected]  

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