xclock:tldr:8a9f5

The command "xclock -digital -strftime ${format}" is used to run the X Window System clock application with specific formatting options.

• "xclock" is the command to start the X Window System clock application.
• "-digital" is an option that specifies to display the time in a digital format rather than an analog clock.
• "-strftime" is an option that tells xclock to format the time according to a specified pattern. It uses the strftime formatting syntax, which allows you to customize the appearance of the time by including various placeholders representing different time components.
• "${format}" is a placeholder for the variable or string specifying the desired strftime format pattern. The actual format pattern should be provided when running the command.

For example, if you want the time to be displayed as "HH:MM:SS" (hours, minutes, and seconds), you can use the command "xclock -digital -strftime "%H:%M:%S"". This will launch the clock application with the digital format and display the time in the specified format.