【Linux命令每日一知】file--输出文件类型

柔光的暖阳◎ 2023-02-26 08:30 296阅读 0赞

> 2020-07-14 上海

## file ##

用来显示文件的类型

man page: `file — determine file type`

### 参数选项 ###

<table> 
 <thead> 
  <tr> 
   <th>参数</th> 
   <th>说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>-b</td> 
   <td>简化输出，不输出文件名</td> 
  </tr> 
  <tr> 
   <td>-i</td> 
   <td>输出文件对应类型mime</td> 
  </tr> 
  <tr> 
   <td>-L</td> 
   <td>如果文件是链接文件，显示最终文件的信息</td> 
  </tr> 
  <tr> 
   <td>-f name_file</td> 
   <td>处理name_file文件中所包含的文件名信息，逐行逐行读取</td> 
  </tr> 
  <tr> 
   <td>-z</td> 
   <td>如果文件是压缩文件，则显示被压缩文件的类型，而不是仅仅显示压缩文件类型</td> 
  </tr> 
 </tbody> 
</table>

### 示例 ###

[root@localhost grub2]# file /bin/bash
    /bin/bash: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=85e3da5a087950e7aaeb7893c056218a8874d2e5, stripped
    [root@localhost grub2]# file /home/jiangjian/kernel/linux-3.10.61.tar.gz 
    /home/jiangjian/kernel/linux-3.10.61.tar.gz: gzip compressed data, from Unix, last modified: Sat Nov 22 02:51:35 2014, max compression
    [root@localhost grub2]# file -z /home/jiangjian/kernel/linux-3.10.61.tar.gz 
    /home/jiangjian/kernel/linux-3.10.61.tar.gz: POSIX tar archive (gzip compressed data, from Unix, last modified: Sat Nov 22 02:51:35 2014, max compression)    
    [root@localhost grub2]# file /home/jiangjian/1.html 
    /home/jiangjian/1.html: ASCII text
    [root@localhost grub2]# file -i /home/jiangjian/1.html 
    /home/jiangjian/1.html: text/plain; charset=us-ascii
    [root@localhost grub2]#