duc:tldr:3242a
The command "duc gui ${-usr}" is not a standard command and there is not enough context to provide a specific explanation. However, based on the available information, I can make an educated guess.
In this command, the "duc" part seems to refer to the Disk Usage Collector (duc) program, which is a command-line tool for analyzing disk usage on Unix-like systems.
The "gui" portion might indicate that the command is attempting to open the duc tool in a graphical user interface (GUI) mode, rather than the default command-line mode.
The "${-usr}" part is likely a placeholder for a variable or argument. The "${-}" typically represents the command-line options used, and "usr" could potentially refer to the user directory or a specific user account. Without further information or context, it's difficult to determine the exact meaning or purpose.
In summary, the command is likely trying to open the duc tool in a GUI mode, possibly targeting a specific user directory or account. However, the specific functionality and purpose of the command can only be confirmed with additional information.