ホームディレクトリ変更

tool cygwin 
$ diff /etc/passwd.bak /etc/passwd
8c8
< hoge:unused_by_nt/2000/xp:11796:10545:hoge,U-HOGEDOMAIN\hoge,S-1-5-21-nnnnnnnnnn-mmmmmmmmmm-1963596
655-1796:/cygdrive/c/Documents and Settings/hoge:/bin/bash
---
> hoge:unused_by_nt/2000/xp:11796:10545:hoge,U-HOGEDOMAIN\hoge,S-1-5-21-nnnnnnnnnn-mmmmmmmmmm-1963596
655-1796:/home/hoge:/bin/bash