04-28-2005
Perhaps you can use UNIX ACL's (Access Control List). I'm not sure if it's in any UNIX other than AIX or HP-UX, but others on this board may be able to help there. I normally wouldn't use ACL's, but for such a situation (where you want to hide files, or deny read access to files, for one user) it may be a good solution. ACL's are exception-bases permissions on files and directories that pre-empt normal permissions. On AIX, you can do a man on the commands acledit, aclget, and aclput. On HP-UX, you can do a man on the commands chacl, getacl, lsacl, and setacl.
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lsacl(1) General Commands Manual lsacl(1)
NAME
lsacl - list access control lists (ACLs) of files
SYNOPSIS
file...
DESCRIPTION
lists access control lists (ACLs) of one or more files in symbolic, ``short'' form, one file's ACL per line of output, followed by the file
name; see acl(5) for ACL syntax.
Options
recognizes the following option:
Print ACLs in long form. Each file's ACL can be more than one line long, and is always preceded by file name, colon, and newline.
Consecutive file names are separated by blank lines.
If a hyphen is given as a file name argument, prints the ACL for the standard input. By default, it prints the file name as For the option
it prints a file name of
Unlike cannot list ACLs of files in subdirectories automatically or list the ACL entries of the files in the current directory by default.
A good way to do the latter is:
or
EXTERNAL INFLUENCES
Environment Variables
determines the language in which messages are displayed.
If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization variable
contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5).
RETURN VALUE
If succeeds, it returns zero. If invoked incorrectly, it returns a value of If is unable to read the ACL for a specified file, it prints
an error message to standard error, continues, and later returns a value of
EXAMPLES
List the ACL for the file
List ACLs for all files in the current directory, in long form.
List ACLs for all files under
DEPENDENCIES
will fail when the target file resides on a file system which does not support ACLs.
NFS:
is not supported on remote files.
AUTHOR
was developed by HP.
SEE ALSO
chacl(1), getaccess(1), ls(1), getacl(2), acl(5).
lsacl(1)