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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <readline/readline.h>
#include <dirent.h>
#include <unistd.h>
/* BOOLEANS */
#define true 1
#define false 0
/* SIGNALS */
#define SIGHUP 1 /* Hang up the process */
#define SIGINT 2 /* Interrupt the process */
#define SIGQUIT 3 /* Quit the process */
#define SIGILL 4 /* Illegal instruction. */
#define SIGTRAP 5 /* Trace trap. */
#define SIGABRT 6 /* Abort. */
void PIPELING();
void COMMAND_EXECUTION();
void REDIRECTION();
void SCRIPTING();
void ERROR_QUIT(char *CURRENT_COMMAND, char *COMMAND_INSTRUCTIONS)
{
printf("%s", );
}
void err_sys(char *string)
{
printf("%s", string);
}
void PROCESS_PID()
{
printf("PID %ld\n", (long)getpid());
}
void LIST_CURRENT_DIRECTORY(int argc, char *argv[])
{
DIR *dp;
struct dirent *dirp;
if (argc != 2)
err_quit("usage: ls directory_name");
if ((dp = opendir(argv[1])) == NULL)
err_sys(argv[1]);
while ((dirp = readdir(dp)) != NULL)
printf("%s\n", dirp->d_name);
closedir(dp);
}
void ECHO_INPUT(char *string)
{
printf("%s", string);
}
int loop_shell()
{
return 0;
}
int main(int argc, char *argv[]) {
int c;
while ((c = getc(stdin) != EOF))
{
if put
}
LIST_CURRENT_DIRECTORY(argc, argv);
printf("successfully started the program");
return 0;
}
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