roles_to_subsystems can be used to access the set of subsystems that include specific roles. The input is a list of roles (i.e., role descriptions), and a mapping is returned as a hash with key role description and values composed of sets of susbsystem names.
roles_to_subsystems [arguments] < input > output
The standard input should be a tab-separated table (i.e., each line is a tab-separated set of fields). Normally, the last field in each line would contain the identifer. If another column contains the identifier use
where N is the column (from 1) that contains the subsystem.
This is a pipe command. The input is taken from the standard input, and the output is to the standard output.
This script is a wrapper for the CDMI-API call roles_to_subsystems. It is documented as follows:
$return = $obj->roles_to_subsystems($roles)
$roles is a roles $return is a reference to a hash where the key is a role and the value is a subsystems roles is a reference to a list where each element is a role role is a string subsystems is a reference to a list where each element is a subsystem subsystem is a string
This is used only if the column containing the subsystem is not the last column.
The standard output is a tab-delimited file. It consists of the input file with extra columns added. For each line of input there can be multiple lines of output, one per subsystem containing the role. The subsystem name is added to the output lines.
Input lines that cannot be extended are written to stderr.