A simple UNIX command interpreter
This project is a barebones clone of the sh unix command line interpreter, following the guidlines presented by staff - This being restrictions on functions we could use limited to:
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)
- C programming language
- bash for testing
- sh for reference
The shell is executed by compiling the c files, and starting the executable file.
gcc -Wall -Wextra -Werror -pedantic *.c -o ./hsh
| C files | Main Content Description | Function count |
|---|---|---|
| built_in.c | contains exit and env functions | 2 |
| helpers.c | contains helper functions and main tokenizer function | 5 |
| helpers2.c | contains helper functions for strtok_r | 5 |
| helpers3.c | assortment of functions like realloc and strtok_r | 5 |
| main_shell.c | contains main functions and disassembled functions for main | 3 |
| utilis.c | engine of the project containing vital executer functions | 5 |
| shell_header.h | header file | N\A |
echo "arg.." | ./hsh
Hizkyas Aberra - hizkyastekle@gmail.com
Philimon Derib - philimonderib2019@gmail.com