This project contains the implementation of a UNIX simple line command interpreter.
- shell.c -> contains the main program for the simple_shell.
- getenv.c-> contains the function that brings the enviromen variable PATH.
- functions_prints.c -> contains the functions allowed to print to the standar output.
- check_builtin.c -> contains the function that checks if a command is a builtin function or not.
- built_in.c -> contains the function to be execute when command is a builtin function.
- aux_func.c -> contains the auxiliar functions to deal with string manipulation.
- holberton.h -> contains the definition of functions, structures and shared libraries.
- man_1_simple_shell -> manual page archive
Simple_shell is an sh-compatible command language interpreter that executes commands read from the standard input.
#include "holberton.h"
/*Invocation*/
bash $ ./simple_shell
$ /*Our shell is running and waiting to receive commands*/
/* command execution interactive */
$ ls -l /usr
total 76
drwxr-xr-x 2 root root 36864 Aug 13 18:02 bin
drwxr-xr-x 2 root root 4096 Apr 10 2014 games
drwxr-xr-x 35 root root 4096 Jul 18 01:02 include
drwxr-xr-x 78 root root 4096 Aug 13 18:02 lib
drwxr-xr-x 3 root root 4096 Jun 11 03:45 lib32
drwxr-xr-x 3 root root 4096 Jun 11 03:45 libx32
drwxr-xr-x 10 root root 4096 Nov 7 2019 local
drwxr-xr-x 2 root root 4096 Jun 2 04:21 sbin
drwxr-xr-x 140 root root 4096 Aug 13 18:02 share
drwxr-xr-x 5 root root 4096 Nov 7 2019 src
$pwd
/home/vagrant/simple_shell
/* command execution directly from bash using pipes*/
bash $ echo "ls -l /usr" | ./simple_shell
total 76
drwxr-xr-x 2 root root 36864 Aug 13 18:02 bin
drwxr-xr-x 2 root root 4096 Apr 10 2014 games
drwxr-xr-x 35 root root 4096 Jul 18 01:02 include
drwxr-xr-x 78 root root 4096 Aug 13 18:02 lib
drwxr-xr-x 3 root root 4096 Jun 11 03:45 lib32
drwxr-xr-x 3 root root 4096 Jun 11 03:45 libx32
drwxr-xr-x 10 root root 4096 Nov 7 2019 local
drwxr-xr-x 2 root root 4096 Jun 2 04:21 sbin
drwxr-xr-x 140 root root 4096 Aug 13 18:02 share
drwxr-xr-x 5 root root 4096 Nov 7 2019 src
bash $This is the flowchart of our program.
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