runat1

Usage

Overview

The runat utility runs the shell command on the named attribute directory for the file argument. It does a fchdir(2) system call to change the current working directory into the named attribute directory for the file argument and then performs the shell command via sh(1).

If a named attribute directory does not exist for file, an empty one will be created. If an application needs to determine if a named attribute exists for the file, pathconf(2) with the name _PC_HAS_NAMEDATTR may be used. This will not create an empty named attribute directory if one does not exist for file.

Examples

For a file called “myfile”:

$ runat myfile ls -l			# lists the attributes for myfile
$ runat myfile cp /etc/hosts attrhosts	# creates attrhosts
$ runat myfile cat attrhosts		# displays contents of attrhosts