NFS4_SETFACL(1) 					    NFSv4 Access Control Lists						   NFS4_SETFACL(1)

NAME

       nfs4_setfacl, nfs4_editfacl - manipulate NFSv4 file/directory access control lists

SYNOPSIS

       nfs4_setfacl [OPTIONS] COMMAND file...
       nfs4_editfacl [OPTIONS] file...

DESCRIPTION

       nfs4_setfacl  manipulates  the  NFSv4 Access Control List (ACL) of one or more files (or directories), provided they are on a mounted NFSv4
       filesystem which supports ACLs.

       nfs4_editfacl is equivalent to nfs4_setfacl -e.

       Refer to the nfs4_acl(5) manpage for information about NFSv4 ACL terminology and syntax.

   COMMANDS
       -a acl_spec [index]
	      add the ACEs from acl_spec to file's ACL.  ACEs are inserted starting at the indexth position (DEFAULT: 1) of file's ACL.

       -A acl_file [index]
	      add the ACEs from the acl_spec in acl_file to file's ACL.  ACEs are inserted starting at the indexth position (DEFAULT: 1) of file's
	      ACL.

       -x acl_spec | index
	      delete  ACEs  matched  from  acl_spec - or delete the indexth ACE - from file's ACL.  Note that the ordering of the ACEs in acl_spec
	      does not matter.

       -X acl_file
	      delete ACEs matched from the acl_spec in acl_file from file's ACL.  Note that the ordering of the ACEs in the acl_spec does not mat-
	      ter.

       -s acl_spec
	      set file's ACL to acl_spec.

       -S acl_file
	      set file's ACL to the acl_spec in acl_file.

       -e, --edit
	      edit  file's  ACL  in  the editor defined in the EDITOR environment variable (DEFAULT: vi(1)) and set the resulting ACL upon a clean
	      exit, assuming changes made in the editor were saved.  Note that if multiple files  are  specified,  the	editor	will  be  serially
	      invoked once per file.

       -m from_ace to_ace
	      modify file's ACL in-place by replacing from_ace with to_ace.

       -?, -h, --help
	      display help text and exit.

       --version
	      display this program's version and exit.

       NOTE: if '-' is given as the acl_file with the -A/-X/-S flags, the acl_spec will be read from stdin.

   OPTIONS
       -R, --recursive
	      recursively  apply  to  a  directory's  files and subdirectories.  Similar to setfacl(1), the default behavior is to follow symlinks
	      given on the command line and to skip symlinks encountered while recursing through directories.

       -L, --logical
	      in conjunction with -R/--recursive, a logical walk follows all symbolic links.

       -P, --physical
	      in conjunction with -R/--recursive, a physical walk skips all symbolic links.

       --test
	      display results of COMMAND, but do not save changes.

PERMISSIONS ALIASES

       With nfs4_setfacl, one can use simple abbreviations ("aliases") to express generic "read" (R), generic "write" (W), and	generic  "execute"
       (X)  permissions,  familiar  from  the  POSIX mode bits used by, e.g., chmod(1).  To use these aliases, one can put them in the permissions
       field of an NFSv4 ACE and nfs4_setfacl will convert them: an R is expanded to rntcy, a W is expanded to watTNcCy (with D added to directory
       ACEs), and an X is expanded to xtcy.  Please refer to the nfs4_acl(5) manpage for information on specific NFSv4 ACE permissions.

       For  example,  if one wanted to grant generic "read" and "write" access on a file, the NFSv4 permissions field would normally contain some-
       thing like rwatTnNcCy.  Instead, one might use aliases to accomplish the same goal with RW.

       The two permissions not included in any of the aliases are d (delete) and o (write-owner).  However, they can still be used: e.g.,  a  per-
       missions field consisting of Wdo expresses generic "write" access as well as the ability to delete and change ownership.

EXAMPLES

       Assume that the file `foo' has the following NFSv4 ACL for the following examples:

	      A::OWNER@:rwatTnNcCy
	      D::OWNER@:x
	      A:g:GROUP@:rtncy
	      D:g:GROUP@:waxTC
	      A::EVERYONE@:rtncy
	      D::EVERYONE@:waxTC

       - add ACE granting `alice@nfsdomain.org' generic "read" and "execute" access (defaults to prepending ACE to ACL):
	      $ nfs4_setfacl -a A::alice@nfsdomain.org:rxtncy foo

       - add the same ACE as above, but using aliases:
	      $ nfs4_setfacl -a A::alice@nfsdomain.org:RX foo

       - edit existing ACL in a text editor and set modified ACL on clean save/exit:
	      $ nfs4_setfacl -e foo

       - set ACL (overwrites original) to contents of a spec_file named `newacl.txt':
	      $ nfs4_setfacl -S newacl.txt foo

       - recursively  set  the	ACLs  of all files and subdirectories in the current directory, skipping all symlinks encountered, to the ACL con-
	 tained in the spec_file named `newacl.txt':
	      $ nfs4_setfacl -R -P -S newacl.txt *

       - delete the first ACE, but only print the resulting ACL (does not save changes):
	      $ nfs4_setfacl --test -x 1 foo

       - delete the last two ACEs above:
	      $ nfs4_setfacl -x "A::EVERYONE@rtncy, D::EVERYONE@:waxTC" foo

       - modify (in-place) the second ACE above:
	      $ nfs4_setfacl -m D::OWNER@:x  D::OWNER@:xo foo

       - set ACLs of `bar' and `frobaz' to ACL of `foo':
	      $ nfs4_getfacl foo | nfs4_setfacl -S - bar frobaz

AUTHORS

       nfs4_setfacl was written by people at CITI, the Center for Information Technology Integration  (http://www.citi.umich.edu).   This  manpage
       was written by David Richter.

CONTACT

       Please send bug reports, feature requests, and comments to <nfsv4@linux-nfs.org>.

SEE ALSO

       nfs4_getfacl(1), nfs4_acl(5), RFC3530 (NFSv4.0), NFSv4.1 Minor Version Draft.

Linux							    version 0.3.3, August 2008						   NFS4_SETFACL(1)