I know I can assign the permission to write to an owner/group/others like this:
chmod u+w myfolder
Can I specify the specific user here? Some like this:
chmod username u+w myfolder
asked Jun 24, 2014 at 10:33
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4I don't think it's possible. Why don't you just add the user to the group?– EmilCommented Jun 24, 2014 at 10:50
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5 Answers
You could use setfacl:
setfacl -m u:username:rwx myfolder
This sets permissions for specific users, without changing the ownership of the directory.
Check out the man page for further details and examples.
Note:
setfaclis short for set File ACL (Access Control List)If you want to apply it recursively to all the subdirectories: add the -R flag like this:
setfacl -R -m u:username:rwx myfolder
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13Perfect answer! Also
setfaclis available on CentOS (yum -y install acl) & FreeBSD as well.– VietCommented Apr 20, 2017 at 12:21 -
10just a note: setfacl = set File ACL, ACL = Access Control List hence for short "setFacl" - easier way to remember i think. Commented Aug 22, 2017 at 10:29
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29If you want to apply it recursively to all the subdirectories: add the -R flag like this:
setfacl -R -m u:username:rwx myfolder– Jose ACommented Mar 14, 2018 at 21:01 -
2Is there a way to grant a user
rwwithout changing any existingxpermission, if operating on multiple files or recursively?– Qi FanCommented Apr 23, 2018 at 21:58 -
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If you want to change the user owning this file or directory (folder), you will have to use the command chown. For instance, if you run
sudo chown username: myfolder
the user owning myfolder will be username. Then you can execute
sudo chmod u+w myfolder
to add the write permission to the username user.
But if you want to add this user to the group associated with "myfolder", you can run
sudo usermod -a -G groupname username
and then execute
sudo chmod g+w myfolder
to add the write permission to the group.
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2There is a way in which both users will have access to the folder, and a group is not needed; it was suggested in an answer for the same question here: superuser.com/a/235398/191720. Commented Feb 3, 2016 at 17:17
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1@AER: In the first command, if a colon follows
usernamethe owning group is also changed tousername(if you omit such a colon, the owning group will not change).– CharoCommented Apr 18, 2018 at 8:46
No this is not possible. You can either change the owner of the file with
[sudo] chown username: foldername
or you can add the user to the group that owns the file with
usermod -a -G {group-name} username
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useradd -G {group-name} usernametells me that username already exists– Erdal G.Commented Sep 20, 2016 at 11:51 -
4i tried this but my user still can't write to that folder Commented Sep 9, 2018 at 16:32
If you want to apply it recursively to all the subdirectories: add the -R flag like this:
setfacl -R -m u:username:rwx myfolder
In Ubuntu recursively (folder and it's all sub folders) giving permission to a specific user:
sudo chown -R <username>: <folderName>
