How to modify read-only files in Linux?
First we open the UBUNTU operating system.
Recommended: "linux tutorial"
Find the terminal window in the menu bar and click to enter.
We create a new file as an example and set it as a read-only file.
If you open a read-only file, read-only will be displayed.
chmod 666 test.txt. At this time, execute the command. The test file is test.txt. 666 means to change it to a readable and writable file.
No prompt will be displayed when opening the file at this time. Belongs to normal mode.
chmod 222 test.txt is a file that is made writable but unreadable.
#When you open the file at this time, you will be reminded that it cannot be opened because it is not readable.
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