Need Help! (setting up minecraft server)

i run on a MacBook Pro
Mac OS :Snowleopard
Version 10.6
every time i try to access my server command file i receive the fallowing prompt (The file “server.command” could not be executed because you do not have appropriate access privileges.) i have already tried giving myself access through TERMINAL by entering (chmod a+x) but i think im using the wrong command....
please help if you can 3000 doll hairs to first person who can help me
tanx in advance

 

make a folder, i recommend desktop because its convent, and call it server or what ever you would like.
drag the craftbukkit.jar file into that.
make a textedit file with the following inside

Code:

#!/bin/bash
cd "$( dirname "$0" )"
java -Xmx1024M -Xms1024M -jar craftbukkit.jar

in the text edit file make sure you clicked "make plain text".
save it in the folder that the craftbukkit.jar file is in and name is start.command
open up terminal and type

Code:

chmod a+x 

(make sure there is a space after the x)
drag the start.command file into the terminal window, and bingo!

 

tried this^ still getting the same prompt

 

just to make sure....
-both start.command and craftbukkit.jar is in the same folder?
- you clicked typed "c + h + m + o + d + 'SPACE' + a + 'PLUS SIGN' + x + 'SPACE'" then clicked and dragged in the start.command file then hit return?

 

I use a Macbook pro, OS X 10.8.4
I tryed this ^ but it didnt work, It dosent start up and load all the files. It just says:
Last login: Sat Jun 22 15:45:02 on ttys000
Matts-MacBook-Pro:~ Matt$ /Users/Matt/Desktop/Minecraft\ Server/start.command ; exit;
Invalid or corrupt jarfile craftbukkit.jar
logout

[Process completed]

What do i need to do to fix this and make the files load onto my server?

 

Lol, just said this on another thread, but here it is again.

Since you're on a Mac, let's make things easy for you.

 

+1 For AutoBukkitServer. Op; AutoBukkitServer will make setting up the server a very simple task for you, courtesy of hawkfalcon, a BukkitDev Staff member. Should make your life a whole lot easier, though you may lag, as you're using a laptop to host a server and I'm assuming play at the same time.