8.每日一個Linux命令----file

描述:查看某個文件的基本信息ui

用法:file [option] 文件名3d

經常使用參數:code

-f:查看文件中的文件名的文件類型ip

-z:嘗試去解讀壓縮文件的內容it

-L:查看軟鏈接對應的文件類型io

示例:1.使用file命令查看/bin/ls的文件信息table

[root@share19 ~]# file /bin/ls
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=0xec333a104e045327c5e3d0ca6dda16c610a210f3, stripped

2.嘗試去解讀壓縮文件的內容ast

[root@DB-Server ~]# file -z Temp.txt.gz 
Temp.txt.gz: UTF-8 Unicode text, with very long lines, with CRLF line terminators (gzip compressed data, was "Temp.txt", from Unix, last modified: Tue Jun 24 00:34:15 2014)

3.查看軟鏈接對應的文件類型sed

[root@DB-Server ~]# ln -s Temp.txt.gz sfile
[root@DB-Server ~]# file sfile 
sfile: symbolic link to `Temp.txt.gz'
[root@DB-Server ~]# file -L sfile 
sfile: gzip compressed data, was "Temp.txt", from Unix, last modified: Tue Jun 24 00:34:15 2014
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