Go Linux System stat Instruction usage

Original: https://www.cnblogs.com/linux-super-meng/p/3812695.html

STAT directive: Details of File/file system display (view file properties).

The stat command is primarily used to display detailed information about a file or file system, which has the following syntax:

-F does not display information about the file itself and displays information about the file system where the file resides

-L Display Symbolic links

-T compact mode, displaying only summary information

In fact, the stat command displays the I node information for the file. The Linux file system stores information in blocks, and each file is indexed with the I node in order to find the location of the storage space where the file resides.

　　

The so-called I node, which is a data structure for file system management, is a 64-byte long table that contains all the information necessary to describe the file, including the size, type, access permissions, and the owner = = of the file

Querying information for RC.D files

[[Email protected] rc.d]# stat rc0.d///can clearly analyze the information of a file or directory
File: ' rc0.d/'
size:4096 blocks:8 IO block:4096 Directory
device:fd00h/64768d inode:1309217 Links:2
Access: (0755/drwxr-xr-x) Uid: (0/root) Gid: (0/root)
Access:2014-06-26 21:02:26.776082938 +0800
modify:2014-06-12 15:16:57.848087079 +0800
change:2014-06-12 15:16:57.848087079 +0800

[[email protected] rc0.d]# du-sh//All files in this directory are 4K and the same size as above
4.0K.

To inquire about the file system where the Ec.d file is located:

[[email protected] rc.d]# stat-f rc0.d///This display is the same as the current system file system information, because rc.0 is in the current system's file system
File: "Rc0.d/"
id:303116b72802c784 namelen:255 TYPE:EXT2/EXT3
Block size:4096 fundamental block size:4096
blocks:total:7558388 free:5545748 available:5161800
inodes:total:1921360 free:1850717

You can also view your hard disk's information

[Email protected] rc.d]# STAT/DEV/SDA
File: '/dev/sda '
size:0 blocks:0 IO block:4096 Block Special File
device:5h/5d inode:6308 links:1 Device type:8,0
Access: (0660/BRW-RW----) Uid: (0/root) Gid: (6/disk)
Access:2014-06-27 20:57:07.213940088 +0800
Modify:2014-06-27 20:57:05.037938949 +0800
Change:2014-06-27 20:57:05.037938949 +0800

SDA hard disk File system Information

[Email protected] rc.d]# stat-f/DEV/SDA
File: "/DEV/SDA"
id:0 namelen:255 Type:tmpfs
Block size:4096 fundamental block size:4096
blocks:total:61793 free:61734 available:61734
inodes:total:61793 free:61080

Go Linux System stat Instruction usage