Hello everyone, this is sdust-vrlab. Linux is a UNIX- like operating system that is free to use and spread freely. The basic idea of Linux has two points: everything is a file; each file has a definite purpose; linux involves IT In all aspects of the industry, in our daily learning, such as cloud computing, operation and maintenance, cloud native, automation, big data, etc., we need to lay a good foundation for Linux. I am also a novice who is learning IT operation and maintenance and networks. I will share a common command of linux every day. I hope this daily sharing column of linux commands can help you, and I also hope that I can improve my technology. We will work together.
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chmod modify file owner, user group, permissions of other users
Only the file owner and superusers can modify the permissions of the file or directory
chmod ugo+r lmy sets the lmy directory to be readable by all
chmod o+w will give the zqr directory writable permissions to other users
In addition, chmod can also use numbers to indicate permissions such as:
r=4，w=2，x=1
If the rwx attribute is 4+2+1=7;
If the rw- attribute is 4+2=6;
For rx attribute, 4+1=5.
chmod 777 zgh sets the zgh directory to be readable, writable and executable by all
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