shell.c

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <readline/readline.h>
#include <readline/history.h>
#include <ncurses.h>
/* to compile run gcc shell.c -o shell -Wformat-security -Wint-conversion -Wincompatible-pointer-types -lreadline -lgtk -lncurses */
int shell(void)
{
            rl_bind_key('\t', rl_complete);
	    using_history ();
            const char *b[4096];		
            initscr();
	    sleep(0);
	    const char *a = fgets("shell->", *b, 4096);
	    printw(a);
	    char *f = readline("shell-> ");
	    printw(f);
	    char ex = 'exit';
	    if (*f == &ex ) {
		endwin();
	    	exit(0);
	    } 
	    add_history(f);  
	    const char *d = system(f);
	return(0);
}

int main(void)
{
	while(1)
		shell();
	return(0);
	if(1) {
		exit(0);
	}
}