問題：
I'm new to mac with not familiar on terminal command, i put the dvtcolorconvert.rb file on root directory of my volume, this ruby script can converting xcode 3 themes into xcode 4 themes format, which is xxxxxxxx.dvtcolortheme format.我是mac新手，對終端命令不熟悉，我將dvtcolorconvert.rb文件放在我卷的根目錄下，這個ruby腳本可以將xcode 3主題轉換爲xcode 4主題格式，即xxxxxxxx.dvtcolortheme格式。
Then run the script /dvtcolorconvert.rb ~/Themes/ObsidianCode.xccolortheme on terminal, but it's always prompt " Permission denied ".然後在終端上運行腳本/dvtcolorconvert.rb ~/Themes/ObsidianCode.xccolortheme ，但總是提示“ Permission denied ”。
what's wrong with this?這有什麼問題？ Anybody can help me solve this problem?有人可以幫我解決這個問題嗎？ Thanks.謝謝。