ls命令 - list directory contents

显示文件详细信息：ls -l <file name>

file命令 — determine file type

determine file type ：file <file name>

output MIME type strings (--mime-type and --mime-encoding) ：file -i <file name>

stat命令 - display file or file system status

显示文件状态信息：stat <file name>

显示文件在系统的状态信息：stat -f <file name>

简明显示文件的状态信息：stat -t <file name>

示例：查看“/usr/bin/bash”文件

[anliven@CentOS7 ~]$ ls -l /usr/bin/bash

-rwxr-xr-x. 1 root root 960392 Aug  3  2016 /usr/bin/bash

[anliven@CentOS7 ~]$

[anliven@CentOS7 ~]$ file /usr/bin/bash

/usr/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]=b3078871b93598006980c166e4cd885b60a4f6af, stripped

[anliven@CentOS7 ~]$

[anliven@CentOS7 ~]$ file -i /usr/bin/bash

/usr/bin/bash: application/x-executable; charset=binary

[anliven@CentOS7 ~]$

[anliven@CentOS7 ~]$ stat /usr/bin/bash

  File: ‘/usr/bin/bash’

  Size: 960392    	Blocks: 1880       IO Block: 4096   regular file

Device: fd00h/64768d	Inode: 5446        Links: 1

Access: (0755/-rwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)

Access: 2017-12-01 23:00:01.150409830 +0800

Modify: 2016-08-03 00:00:07.000000000 +0800

Change: 2017-04-23 08:08:44.204147902 +0800

 Birth: -

[anliven@CentOS7 ~]$

[anliven@CentOS7 ~]$ stat -f /usr/bin/bash

  File: "/usr/bin/bash"

    ID: fd0000000000 Namelen: 255     Type: xfs

Block size: 4096       Fundamental block size: 4096

Blocks: Total: 9330226    Free: 8128895    Available: 8128895

Inodes: Total: 18669568   Free: 18540126

[anliven@CentOS7 ~]$

[anliven@CentOS7 ~]$ stat -t /usr/bin/bash

/usr/bin/bash 960392 1880 81ed 0 0 fd00 5446 1 0 0 1512140401 1470153607 1492906124 0 4096

[anliven@CentOS7 ~]$