You can modify it via vim in Cygwin, or you can modify home\< your user name >\.bash_profile file in the Windows installation directory to add the environment variable last
Ndkroot=/cygdrive/e/andriod/develop/android-ndk-r8
Export Ndkroot
Which ndk=/cygdrive/< your drive letter >/<android ndk directory >, "NDK" the name casually up, often used not too long.
Restart Cygwin, enter:
CD $NDK
You can enter the NDK corresponding directory description settings OK.
Error occurs at this time
-bash: $ ' \ R ': Command not found
-bash: $ ' \ R ': Command not found
-bash: $ ' \ R ': Command not found
-bash: $ ' \ R ': Command not found
-bash: $ ' \ R ': Command not found
-bash: $ ' \ R ': Command not found
-bash: $ ' \ R ': Command not found
-bash:/home/lenovo/.bash_profile:line 47:syntax error:unexpected end of File
Enter in Cygwin: Dos2unix-n. Bash_profile. Bash_profile
Turn off re-opening the Cygwin,ok. So again, do not use the window Notepad or write to open the changes, using UltraEdit do not convert the format, because under window and Linux in the carriage return is not the same.
Configure NDK Cygwin. Bash_profile: Line 47: Syntax error: unexpected end of file syntax error:unexpected end of files resolution