changed from fgets to readline do to file completion.

main.c

@@ -3,6 +3,8 @@
 #include<sys/wait.h>
 #include<unistd.h>
 #include<string.h>
+#include<readline/readline.h>
+#include<readline/history.h>
 int handleBuiltins(char **args) {
   if(strcmp(args[0], "cd") == 0) {
     chdir(args[1] == NULL ? getenv("HOME") : args[1]);
@@ -25,20 +27,20 @@ char **parse(char *line) {
   return args;
 }
 int main() {
-	char line[1024];
 	while(1) {
 		char *user = getenv("USER");
 		char dir[1024];
 		getcwd(dir, sizeof(dir));
 		char host[1024];
 		gethostname(host, sizeof(host));
-		printf("%s@%s %s$", user, host, dir);
-		fflush(stdout);
-		char *result = fgets(line, sizeof(line), stdin);
-		if(result == NULL) return 0;
+		char prompt[2048];
+		snprintf(prompt, sizeof(prompt), "%s@%s %s$ ", user, host, dir);
+		char *line = readline(prompt);
+		if(line == NULL) return 0;
+		if(line && *line) add_history(line);
 		char **parsed = parse(line);
-		if(parsed[0] == NULL) { free(parsed); continue; }
-		if(handleBuiltins(parsed)) { free(parsed); continue; }
+		if(parsed[0] == NULL) { free(parsed); free(line); continue; }
+		if(handleBuiltins(parsed)) { free(line); free(parsed); continue; }
 		pid_t pid = fork();
 		if(pid == 0) {
 		  if(execvp(parsed[0], parsed) == -1 ) {
@@ -49,6 +51,7 @@ int main() {
 		  wait(NULL);
 		}
 		free(parsed);
+		free(line);
 	}
 }