Which command is used to default permissions for files and directories?
chmod The chmod command
chmod. The chmod command is used to change the permissions of a file or directory.
What is the default set of permissions given by the system to the directory?
Default permission for a directory is 0777, for files the permissions are 0666 from which the default umask value 0022 is deducted to get the newly created files or directory permission. Final default permission for a file is calculated as shown below: Default file permission: 666. Default umask : 022.
Do you have to use ACL to set permissions?
Unlike the basic and regular way of giving permissions to one user that is the owner of a file and one group that is the group owner of a file using the “chmod” command, if you have to give additional permissions to another user or another group on a file without making the user a member of the group, you will have to use ACL to do it.
Which is the default ACL for a directory?
The access ACL and the default ACL. The default ACL can only be effective on a directory. It is advisable that you set all the permissions you want to set on a file first using the chmod command, before setting permissions using ACL.
How to set default file permissions for all folders / files?
Lets call the group “media”. And also, the folders/files created within the directory should have g+rw automatically. This is an addition to Chris’ answer, it’s based on my experience on my Arch Linux rig. This creates the default rules for newly created files/dirs within the html directory and sub directories.
How to set Linux default access control list?
Because created directories will have user:r-x -> mask will be r-x -> effective permission will be r-x. For files: they will have r– so mask will be r– and effective permissions for ACLs will be r–, too. (If you create a file and give it a user::r-x permissions, then mask will be modified and users form acl’s will get the x, too)