Once users have downloaded data, they can use the `--update` switch to update their directory to the current data set stored in PEP (e.g. adding files that have since been uploaded by some other user). Note that no column(group)s or participant(group)s must be specified when using the `--update` switch. The data will be updated for the original download's participants and columns, e.g.:
Users that have previously downloaded data can use the `--update` switch to retrieve any updates from PEP. Upon the command's completion, their local directory will once again match the data currently stored in PEP, e.g. having added files that were uploaded after the initial data was downloaded. Data will be updated for all participants and columns that were included in the original download, so no participant(group)s and/or column(group)s should be specified when using the `--update` switch. E.g.:
