当我尝试跑步时
mkdir new
我得到了错误，
bash: cd: new: No such file or directory
据我记得，我没有改变任何文件权限。那么这可能是什么原因造成的。Ubuntu 10.04
更新：
$ whereis mkdir
mkdir：/bin/mkdir /usr/share/man/man1/mkdir.1.gz /usr/share/man/man2/mkdir.2.gz
$ whereis cd
光盘：
ls -la 的 o/p
total 68
drwxr-xr-x 13 comp comp 4096 2011-06-15 20:01 .
drwxr-xr-x 43 comp comp 4096 2012-04-02 16:09 ..
drwxr-xr-x 6 comp comp 4096 2011-06-15 20:01 app
drwxr-xr-x 5 comp comp 4096 2011-06-15 20:01 config
drwxr-xr-x 2 comp comp 4096 2011-06-15 20:01 db
drwxr-xr-x 2 comp comp 4096 2011-06-15 20:01 doc
drwxr-xr-x 3 comp comp 4096 2011-06-15 20:01 lib
drwxr-xr-x 2 comp comp 4096 2011-06-15 20:01 log
drwxr-xr-x 5 comp comp 4096 2011-06-15 20:01 public
-rw-r--r-- 1 comp comp 307 2011-06-15 20:01 Rakefile
-rw-r--r-- 1 comp comp 10011 2011-06-15 20:01 README
drwxr-xr-x 3 comp comp 4096 2011-06-15 20:01 script
drwxr-xr-x 7 comp comp 4096 2011-06-15 20:01 test
drwxr-xr-x 6 comp comp 4096 2011-06-15 20:01 tmp
drwxr-xr-x 3 comp comp 4096 2011-06-15 20:01 vendor
答案1
alias mkdir=cd从 ~/.bashrc 或 /etc/bash.bashrc 中删除此行 ' '