Dell Update Packages Version 14.11.201 User's Guide

As the DUPs are executed, messages are printed to the console. To redirect console output, use the following syntax with interactive commands:

The |tee specifies the output from the DUP to be sent to both the console and to a log file. The ‑a switch ensures that the output is appended to a file, protecting any previous log file output from being overwritten.