Introduction to file attributes in linux

Introduction to file attributes in linux-general Linux technology-Linux technology and application information. The following is a detailed description. Open source technology exchange alliance was formally established:
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When using the shell command ls, we will find many attributes and labels. Here we will introduce them:
Ls-al
We will get a lot of row files like: drwx rwx 1 root 293 may 10 name
The corresponding attribute is: Archive property connection number owner all group capacity last Edit Time file name
Archive attributes: Part 1 d
If it is [d], it is a directory, such as the 11th rows in the Table above;
If it is [-], it is an archive, for example, the 5th rows in the Table above;
If it is [l], the link file is used );
If it is [B], it indicates the interface device in the device file that can be stored;
If it is [c], it indicates the serial port device in the device file, such as the keyboard and mouse.
-R indicates read Attribute-w indicates write attribute x indicates execution attribute
The first part is the attributes of the archive owner.
Part 2: Attributes of all groups in the archive Part 3: attributes used by others


When we use the chmod command, we will have a lot of numeric attributes. Maybe new users will be bored with calculating this thing. What is it about 755.
It's actually very simple:
R: 4
W: 2
X: 1
-Rwx-rx
It's easy.