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man pages section 1: User Commands

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Updated: Thursday, June 13, 2019
 
 

updatehome(1)

Name

updatehome - update the home directory copy and link files for the current label

Synopsis

/usr/bin/updatehome [-cirs]

Description

updatehome reads the user's minimum-label copy and link-control files (.copy_files and .link_files). These files contain a list of files to be copied and symbolically linked from the user's minimum-label home directory to the user's home directory at the current label.

By default, the minimum user label is specified in label_encodings(5), and can be explicitly specified in user_attr(5). When created using txzonemgr(8), the public zone is assigned the default minimum label, and is configured as a multilevel NFS server. An authorized administrator in the public zone can use the share(8) command to export home directories, so that they can be mounted in read-only mode by higher-level zones. Additional zones created by means of txzonemgr(8) are configured with an automount(8) entry that mounts the public zone's home directories at /zone/public/home.

If the user's minimum home directory has been shared in this fashion, a user can run the updatehome command in higher-level zones, either manually or by executing it in a startup file. For example, the user probably wants a symbolic link to such files as .profile, .login, .cshrc, .exrc, .mailrc, and ~/bin. The updatehome command provides a convenient mechanism for accomplishing this symlink. The user can add files to those to be copied (.copy_files ) and to those to be symbolically linked (.link_files).

Options

–c

Replace existing home-directory copies at the current label. The default is to skip over existing copies.

–i

Ignore errors encountered. The default aborts on error.

–r

Replace existing home-directory copies or symbolic links at the current label. This option implies options –c and –s. The default is to skip over existing copies or symbolic links.

–s

Replace existing home-directory symbolic links at the current label. The default is to skip over existing symbolic links.

Exit Status

Upon success, updatehome returns 0. Upon failure, updatehome returns 1 and writes diagnostic messages to standard error.

Examples

Example 1 A Sample .copy_files File

The files that are listed in .copy_files can be modified at every user's label.

.cshrc 
.mailrc 
.mozilla/bookmarks.html
Example 2 A Sample .link_files File

The files that are listed in .link_files can be modified at the lowest label. The changes propagate to the other labels that are available to the user.

~/bin
.mozilla/preferences
.xrc
.rhosts
Example 3 Updating the Linked and Copied Files

The .copy_files and .link_files were updated by the user at the minimum label. At a higher label, the user refreshes the copies and the links. No privileges are required to run the command.

% updatehome -r

Files

$HOME/.copy_files

List of files to be copied

$HOME/.link_files

List of files to be symbolically linked

Attributes

See attributes(7) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Availability
system/trusted
Interface Stability
Committed

See Also

label_encodings(5), user_attr(5), attributes(7), automount(8), share(8), txzonemgr(8)

Trusted Extensions Configuration and Administration

Notes

The functionality described on this manual page is available only if the system is configured with Trusted Extensions.