setfacl

Sergey Ostapov

Sets Access Control Lists (ACLs) of files and directories. Returns 0 on success and non-zero on error.

The usage is as follows:

$ hadoop fs -setfacl [-R] [-b
|-k -m |-x <acl_spec> <path>] |[--set <acl_spec> <path>]

Arguments
-b	Removes everything, but the base ACL entries. The entries for user, group, and others are retained for compatibility with permission bits
-k	Removes the default ACL
-R	Applies operations to all files and directories recursively
-m	Modifies ACL. New entries are added to the ACL, and existing entries are retained
-x	Removes specified ACL entries. Other ACL entries are retained
--set	Fully replaces the ACL, discarding all existing entries. The `acl_spec` must include entries for user, group, and others for compatibility with permission bits. If the `acl_spec` contains only access entries, then the existing default entries are retained. If the `acl_spec` contains only default entries, then the existing access entries are retained. If the `acl_spec` contains both access and default entries, then both are replaced
acl_spec	A comma-separated list of ACL entries
path	A path to the file or directory to modify

Example:

$ hadoop fs -setfacl -m user:hadoop:rw- /file
$ hadoop fs -setfacl -x user:hadoop /file
$ hadoop fs -setfacl -b /file
$ hadoop fs -setfacl -k /dir
$ hadoop fs -setfacl --set user::rw-,user:hadoop:rw-,group::r--,other::r-- /file
$ hadoop fs -setfacl -R -m user:hadoop:r-x /dir
$ hadoop fs -setfacl -m default:user:hadoop:r-x /di

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