https://github.com/goldenthrust/simple_shell

Simple Shell is a custom implementation of a Unix shell built in C. This project provides a minimalistic, yet functional command-line interpreter that can execute commands, handle input/output redirection, and manage processes. It serves as an educational tool for understanding how shells work.
https://github.com/goldenthrust/simple_shell

alx-africa simple-shell

Last synced: about 2 months ago
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Simple Shell is a custom implementation of a Unix shell built in C. This project provides a minimalistic, yet functional command-line interpreter that can execute commands, handle input/output redirection, and manage processes. It serves as an educational tool for understanding how shells work.

• Host: GitHub
• URL: https://github.com/goldenthrust/simple_shell
• Owner: GoldenThrust
• Created: 2023-05-13T00:15:23.000Z (almost 2 years ago)
• Default Branch: master
• Last Pushed: 2023-05-25T00:43:08.000Z (almost 2 years ago)
• Last Synced: 2025-01-17T23:24:12.378Z (4 months ago)
• Topics: alx-africa, simple-shell
• Language: C
• Homepage:
• Size: 26.4 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Authors: AUTHORS

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README

        
# C - Simple Shell

> Group project by Adeniji Olajide and Olayemi Samson

# Output

```

	Example of error with sh:

	$ echo "qwerty" | /bin/sh

	/bin/sh: 1: qwerty: not found

	$ echo "qwerty" | /bin/../bin/sh

	/bin/../bin/sh: 1: qwerty: not found

	$

	Same error with your program hsh:

	$ echo "qwerty" | ./hsh

	./hsh: 1: qwerty: not found

	$ echo "qwerty" | ./././hsh

	./././hsh: 1: qwerty: not found

	$

```

	List of allowed functions and system calls

	access (man 2 access)

	chdir (man 2 chdir)

	close (man 2 close)

	closedir (man 3 closedir)

	execve (man 2 execve)

	exit (man 3 exit)

	_exit (man 2 _exit)

	fflush (man 3 fflush)

	fork (man 2 fork)

	free (man 3 free)

	getcwd (man 3 getcwd)

	getline (man 3 getline)

	getpid (man 2 getpid)

	isatty (man 3 isatty)

	kill (man 2 kill)

	malloc (man 3 malloc)

	open (man 2 open)

	opendir (man 3 opendir)

	perror (man 3 perror)

	read (man 2 read)

	readdir (man 3 readdir)

	signal (man 2 signal)

	stat (__xstat) (man 2 stat)

	lstat (__lxstat) (man 2 lstat)

	fstat (__fxstat) (man 2 fstat)

	strtok (man 3 strtok)

	wait (man 2 wait)

	waitpid (man 2 waitpid)

	wait3 (man 2 wait3)

	wait4 (man 2 wait4)

write (man 2 write)

	Compilation

	Your shell will be compiled this way:

	gcc -Wall -Werror -Wextra -pedantic -std=gnu89 *.c -o hsh

	Testing

	Your shell should work like this in interactive mode:

	$ ./hsh

	($) /bin/ls

	hsh main.c shell.c

($)

	($) exit

	$

	But also in non-interactive mode:

	$ echo "/bin/ls" | ./hsh

	hsh main.c shell.c test_ls_2

	$

	$ cat test_ls_2

	/bin/ls

	/bin/ls

	$

	$ cat test_ls_2 | ./hsh

	hsh main.c shell.c test_ls_2

	hsh main.c shell.c test_ls_2

	$