[ubuntu] Modify the permissions of folders (directories) and their internal files

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Modify the permissions of a folder (directory) and its internal files

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Modify the permissions of a folder (directory) and its internal files

In Ubuntu, you can use the chmod command to modify the permissions of a folder (directory) and the files inside it. Here is an example command to change the permissions of a folder and all files inside it to the same permissions:

chmod -R <permission> <folder_path>

where, <permission> is the permission setting, indicating the required permissions, such as 755 or 777, <folder_path> is the folder path of the permissions to be modified.

Please note that you need to run this command as an administrator. If the current user does not have sufficient permissions to modify the permissions of a specific folder and its internal files, you need to use the sudo command to obtain administrator permissions. Examples include:

sudo chmod -R 755 /path/to/folder

The above command sets the permissions of the /path/to/folder folder and all the files inside it to 755.

Caution 项：

• Be careful when modifying permissions and make sure you understand the appropriate permission settings required for files and folders.
• -R Parameters are used to modify permissions recursively, that is, including subfolders and files.
• Using higher permissions (such as 777) may cause security risks. Please choose the appropriate permissions based on the actual situation.
• Before changing permissions, it's a good idea to back up your folder data just in case something unexpected happens.