In DOS you may have been used to D: to change to the D drive.
Cygwin provides a mapping of DOS/Windows drives to the unix file system by mapping or mounting drives into the /cygdrive/directory.
To use the D: drive you would type cd /cygdrive/d.
Alternatively you can use cd d:/
http://magicmonster.com/kb/app/cygwin/change_drive.html
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原文地址:http://www.cnblogs.com/imrobin/p/3762771.html