There are four separate sets of SAS datasets, since not all users have obtained permission to access later waves of the study. This command is used to give temporary access to the relevant files. Technically, the linkdb command creates a new shell which has membership of the group ghs76. When linkdb is used, the path for the subdirectory will be shown on the screen. This path needs to be used for referencing the files.
Many subdirectories contain more than one file.
NQS Long jobs should be submitted to the NQS batch system for execution. The linkdb creates a new shell. The new shell created by linkdb disappears at the end of the job - there is no need to use exit. The ouput files will normally be returned to the directory from which the job was submitted.