xattr(1) [freebsd man page]

XATTR(1)						      General Commands Manual							  XATTR(1)

NAME

       xattr - sets or lists extended attributes on a file or directory

SYNOPSIS

       xattr [ -lz ] filename [ filename ... ]
       xattr -p [ -lz ] attr_name filename [ filename ... ]
       xattr -w [ -z ] attr_name attr_value filename [ filename ... ]
       xattr -d attr_name filename [ filename ... ]

DESCRIPTION

       This manual page documents briefly the xattr command.

       The first form lists the names of all xattrs on the given file(s).
       The second form (-p) prints the value of the xattr attr_name.
       The third form (-w) sets the value of the xattr attr_name to attr_value.
       The fourth form (-d) deletes the xattr attr_name.

OPTIONS

       A summary of options is included below.

       -h     Show summary of options.

       -l     Print long format (attr_name: attr_value) when listing xattrs.

       -z     Compress or decompress (if compressed) attribute value in zip format).

SEE ALSO

       The Python module "xattr"

AUTHOR

       xattr was written by Bob Ippolito <bob@redivi.com>.

       This manual page was written by Federico Ceratto, for the Debian project (and may be used by others).

								   May	8, 2010 							  XATTR(1)

XATTR_GET(3)								 1							      XATTR_GET(3)

xattr_get - Get an extended attribute

SYNOPSIS

       string xattr_get (string  $filename, string  $name, [int  $flags])

DESCRIPTION

	This function gets the value of an extended attribute of a file.

       Extended attributes have two different namespaces: user and root. The user namespace is available to all users, while the root namespace is
       available only to users with root privileges. xattr operates on the user namespace by default, but this can  be	changed  with  the  $flags
       parameter.

PARAMETERS

	      o $filename
		- The file from which we get the attribute.

	      o $name
		- The name of the attribute.

	      o $flags
		-

	      Supported xattr flags

	      +-----------------+---------------------------------------------------+
	      | 		|						    |
	      |XATTR_DONTFOLLOW |						    |
	      | 		|						    |
	      | 		| Do  not  follow  the symbolic link but operate on |
	      | 		| symbolic link itself. 			    |
	      | 		|						    |
	      | 		|						    |
	      |   XATTR_ROOT	|						    |
	      | 		|						    |
	      | 		| Set  attribute  in  root   (trusted)	 namespace. |
	      | 		| Requires root privileges.			    |
	      | 		|						    |
	      +-----------------+---------------------------------------------------+
RETURN VALUES

	Returns a string containing the value or FALSE if the attribute doesn't exist.

EXAMPLES

       Example #1

	      Checks if system administrator has signed the file

	      <?php
	      $file = '/usr/local/sbin/some_binary';
	      $signature = xattr_get($file, 'Root signature', XATTR_ROOT);

	      /* ... check if $signature is valid ... */

	      ?>

SEE ALSO

       xattr_list(3), xattr_set(3), xattr_remove(3).

PHP Documentation Group 													      XATTR_GET(3)