TITLE

Simple Shell

DESCRIPTION

The project consist to create a little shell with different fonctionality from several version of it

ALLOWED EDITORS

vi, vim, emacs

DEVELOPPEMENT ENVIRONMENT

1. All your files will be compiled on Ubuntu 20.04 LTS using gcc, using the options -Wall -Werror -Wextra -pedantic -std=gnu89
2. All your files should end with a new line

REQUIREMENTS

1. Your code should use the Betty style
2. Your shell should not have any memory leaks
3. No more than 5 functions per file
4. All your header files should be include guarded
5. Use system calls only when you need to

OUTPUT

Unless specified otherwise, your program must have the exact same output as sh (/bin/sh) as well as the exact same error output. The only difference is when you print an error, the name of the program must be equivalent to your argv[0] (See below)

Example of error with sh:

julien@ubuntu:/# echo "qwerty" | /bin/sh
/bin/sh: 1: qwerty: not found
julien@ubuntu:/# echo "qwerty" | /bin/../bin/sh
/bin/../bin/sh: 1: qwerty: not found

Same error with your program hsh:

julien@ubuntu:/# echo "qwerty" | ./hsh
./hsh: 1: qwerty: not found
julien@ubuntu:/# echo "qwerty" | ./././hsh
./././hsh: 1: qwerty: not found

LIST OF ALLOWED FUNCTIONS AND SYSTEM CALLS+

all functions from string.h

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)

printf (man 3 printf)

fprintf (man 3 fprintf)

vfprintf (man 3 vfprintf)

sprintf (man 3 sprintf)

putchar (man 3 putchar)

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)

FLOWCHART

COMPILATION

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

TESTING

exemple pour la commande 'ls':

$ ls 
AUTHORS  README.md  builtins.c  errors.c  execute.c  exits.c  hsh  hsh.c  man_1_simple_shell  parser.c  path.c  prompt.c  shell.h  utils.c
$ /bin/ls       
AUTHORS  README.md  builtins.c  errors.c  execute.c  exits.c  hsh  hsh.c  man_1_simple_shell  parser.c  path.c  prompt.c  shell.h  utils.c
$ /bin/ls /var
backups  cache  crash  lib  local  lock  log  mail  opt  run  snap  spool  tmp

AUTHOR

@ Tom Proux : https://github.com/tomproux

@ Denis Gavaud : https://github.com/Denis12306