https://github.com/rarakira/minishell
Simple shell project for 21 school (42)
https://github.com/rarakira/minishell
21school born2code ecole42 learning-c minishell shell
Last synced: 18 days ago
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Simple shell project for 21 school (42)
- Host: GitHub
- URL: https://github.com/rarakira/minishell
- Owner: rarakira
- Created: 2022-01-20T17:05:28.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2022-06-07T12:06:17.000Z (almost 4 years ago)
- Last Synced: 2025-03-27T10:47:55.389Z (about 1 year ago)
- Topics: 21school, born2code, ecole42, learning-c, minishell, shell
- Language: C
- Homepage:
- Size: 8.14 MB
- Stars: 3
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
_This is a **21 School/Ecole 42** Project. Worked in team with [Cflorind](https://github.com/splinehip)_
# minishell
Coding a simple CLI shell with basic functionality. Subject can be found [here](https://cdn.intra.42.fr/pdf/pdf/43461/en.subject.pdf).
## Project goals
* Understand the way shells work
* Implement redirections, pipes, handle environment variables
* Practice signal handling
* Implement list of builtins
## Features
### Basics:
- History of previous entered commands
- Search and launch the right executable (based on the `PATH` variable, using a relative or an absolute path)
- Environment variables (`$` followed by a sequence of characters) expand to their values
- Wildcards `*` in the current working directory
- `ctrl-C`, `ctrl-D` and `ctrl-\` behave like in bash
- `’` (single quotes - prevent from interpreting meta-characters in quoted sequence)
- `"` (double quotes - prevent from interpreting meta-characters in quoted sequence except for $)
- `$?` expands to the last exit status
- `|` connect cmds or groups with pipes; output of a cmd is connected to the input of the next cmd via a pipe
- `&&` and `||` with parenthesis for priorities
### Builtins:
- `echo` with option -n
- `cd`
- `pwd` without options
- `export` without options
- `unset` without options
- `env` without options
- `exit [exit_status]` without options
### Redirections:
`[n]` (optional) specifies the file descriptor, if not specified it is stdout/stdin
- `[n]< file` Redirecting Input
- `[n]<< limiter` Here Documents
- `[n]> file` Redirecting Output
- `[n]>> file` Appending Redirected Output
## To compile and run
Run the following commands in Terminal:
```shell
# to build
> make
# to run
> ./minishell
```