Added some comments to the code

commands/change_dir.c

@@ -9,12 +9,12 @@
 void changeCurrentWorkDir(char *arg[]){
 	DIR *d;
 	struct dirent *dir;
-	d = opendir(arg[1]);
-	if(d == NULL){
+	d = opendir(arg[1]); //Try to open directory
+	if(d == NULL){ //Check if directory exists
 		printf("Folder not found.\n");
 		return;
 	} else {
-		chdir(arg[1]);
+		chdir(arg[1]); //If directory exists, change workpath
 	}
-	closedir(d);
+	closedir(d); //Close directory
 }

commands/help.c

@@ -3,6 +3,7 @@
 
 #include "help.h"
 
+//Print the help
 void outputHelp(){
 	printf("usage: netbenixCMD [option]\n");
 	printf("Options:\n");

commands/show_dir.c

@@ -27,12 +27,12 @@ void showDirectory(char *arg[]){
 	struct dirent *dir;
 	char path[PATH_MAX];
 	
-	d = opendir(arg[1]);
-	if(d == NULL){
+	d = opendir(arg[1]); //Try to open directory
+	if(d == NULL){ //Check if directory exists
 		printf("Folder not found.\n");
 		return;
 	}
-	realpath(arg[1], path);
+	realpath(arg[1], path); //Get the absolute path of the directory
 	if(d){
 		while((dir = readdir(d))){
 			if(dir->d_type == 8){	//IF IS FILE
@@ -43,6 +43,6 @@ void showDirectory(char *arg[]){
 				printf("%s\n", dir->d_name);
 			}
 		}
-		closedir(d);
+		closedir(d); //Close directory
 	}
 }