On certain occasions, we may need to change file permissions due to various reasons. Generally, such a requirement mostly pops out while working in a team where a file requires different permissions for each user. This ability to change permissions increases accessibility while eliminating any user restrictions. Speaking of that, most of us have heard about the RWRR or 644 file permission. But do you know what these letters or digits really indicate? Or how to change your file permission to RWRR?
Well, if not, then you have come to the right place. Changing file permission is basically a two-step process where you first move the file to the system directory and later change its permissions. However, it is not as easy as it sounds. While moving the file must be a piece of cake, changing the permission is what causes uncertainty. But worry no more, in this guide, we will show you how to change file permission to RWRR on your Android phone.
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What is RWRR or 644 File Permission?
RWRR, specifically written as RW-R-R refers to read/ write permissions of a file. It generally indicates which user has how much access to a certain file. In this case, the first two letters “RW” represent the owner of the file having both read and write permissions. The second letter “R” refers to read-only permission for the rest of the group and the third letter again refers to read-only permission for others (third-party users).
Likewise, 644 indicates the numerical translation of the RWRR permission. Here 6 refers to read/ write permission for the owner while 4 represents read-only permission for the group and other users. Here is a complete list of the numerical representation of file permissions.
- 0 – No permissions
- 1 – Execute Only
- 2 – Write Only
- 3 – Write and Execute Permissions
- 4 – Read Only
- 5 – Read and Execute Permissions
- 6 – Read and Write Permissions
- 7 – Read, Write, and Execute Permissions
How to Change File Permission to RWRR or 644 on Android?
Now that you have a better understanding of the file permissions, let us look into how we can change it to RWRR or 644 for a file. The RWRR permission is commonly used with the system files. Fortunately, changing file permissions on Android requires you to follow a set of well-defined steps. Below we have a breakdown of all these steps to make the journey further easier for you.
- Firstly, you need to root your Android device to access the system directory. So, use Magisk to root your phone.
- Next, download a File Manager app and make sure it supports a rooted device. In this case, we will be using Solid File Manager.
- Open the File Manager, tap on the menu icon at the top-left corner, and select Root.
- Now, you will receive a SuperUser (SU) request, simply tap on Grant.
- Move the desired file to your System Directory.
- Press and hold to select the file and go to Properties.
- Under the ‘Attributes’ tab, check R and W permissions for the Owner, and R permission for the group and global users. Make sure not the check the X [no check] option.
- Lastly, tap on the apply button to save changes.
And you are all done. The respective file will now have the RWRR or 644 file permission applied to it. We recommend using the Magisk tool for rooting Android devices since it automatically generates the SuperUser request. However, if you wish to use other services like KernelSU, you need to manually allow SU requests to the File Manager app.
Conclusion
So, that is all about the file permissions and how to change it to RWRR or 644. If you follow these steps carefully, you can easily change the file permissions using the CHMOD options. Just make sure to root your device successfully and the rest would be a straight path. Finally, let us know if this guide was helpful or if you have any further queries about the same.