Purpose
Adds the given tag to the specified files or directories in an Oracle ACFS file system
Syntax and Description
acfsutil tag set -h acfsutil tag set [-v] [-r] tagname path [path ...]
acfsutil tag set -h displays help text and exits.
Table 16-27 contains the options available with the acfsutil tag set command.
Table 16-27 Options for the acfsutil tag set command
| Option | Description |
|---|---|
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Specifies a tag name string. Enclose the string in quotes if the string contains a space. The tag string can be composed of ASCII characters that include: a-b, A-Z, 0-9, the space character, the hyphen, and the underscore. The maximum length of a tag name is 32 characters.
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Specifies the path string to one or more files or directories. |
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Specifies recursive action on the specified path. |
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Displays the progress of the operation. |
The command can recursively apply the operation to all child files and subdirectories for the specified directory path names.
When adding a tag name to a file or directory, the existing tags on that file or directory remain unchanged. New files that are created after a directory is assigned a tag implicitly inherit tags from their parent directories. Existing files in the directory do not inherit the new tag; these files must be explicitly assigned the tag. Renaming a file or moving a file to a subdirectory within the same file system does not cause the file to inherit tag names from the new parent directory. Moving a file between file systems uses a copy operation and the newly created file does inherit the tag names of the parent directory.
There is no fixed maximum number of tag names for an Oracle ACFS file system or for each file and directory. However, the number of tag names is limited by the tag names that fit in up to 64 KB of special metadata storage for each file and directory. This metadata also contains information to manage the extended attributes. Longer tag names reduce the total of tag names that can be set on a file or directory. For example, if all tag names were 4 bytes long, then it is possible to hold approximately 1730 tag names, assuming no other extended attribute information is present.
Any user who has the privilege to modify the target file or directory may run this command.
If a user runs acfsutil tag set with the -r option on a directory protected by a security realm and does not have browse permissions on the directory, then no tags are applied. To resolve this issue, the user must be added to the security realm and granted READDIR permissions. For information about adding objects to an Oracle ACFS security realm, refer to "acfsutil sec realm add".
Examples
The following example show the use of the acfsutil tag set command.