linux文件类型和file命令的疑惑

zongg

回复 10# xubigtree


    根据file 也可以反映出文件的类弄，
如：

1. $ file /opt/
   
2. /opt/: directory
   
3. 
   
4. $ file /dev/zero
   
5. /dev/zero: character special (1/5)

复制代码

kellyseeme123

我猜想你所选择的文件用file命令查看时候，如果用ll显示第一个显示的都是-，即普通文件
而：
-  普通文件，或更准确地说，不属于以上几种类型的文件。

建议看下这个   http://hi.baidu.com/kingfly66666 ... 03dcec82025cff.html

xubigtree

谢谢楼上所有人的回答。谢了

kellyseeme123

参考：：The type printed will usually contain one of the words
text (the file contains only printing characters and a few common control characters and is probably safe to read on an ASCII terminal),

executable (the file contains the result of compiling a program in a form understandable to some UNIX kernel or another),

data meaning anything else (data is usually `binary' or non-printable).

Any file that cannot be identified as having been written in any of the character sets listed above is simply said to be ``data''.  

http://linux.about.com/library/cmd/blcmdl1_file.htm

ulovko

kellyseeme123 发表于 2012-07-25 10:45
参考：：The type printed will usually contain one of the words
text (the file contains only printi ...

很详细，欢迎分享 ^_^