PATH

The $PATH is searched from beginning to end, with the first win

SET PATH=C:\cygwin\bin;%PATH%

Window 路徑 ENV VAR

 * 可以在 "開始" -> "執行 " 輸入它們

%systemroot% = C:\WINDOWS

%appdata% = C:\Documents and Settings\lwy\Application Data

%homepath% = C:\Documents and Settings\lwy