utmpdump:tldr:5f535

This command is used to analyze and display the contents of a UTMP file (the file that stores information about user logins and logouts) in a human-readable format. Here's a breakdown of the command:

• utmpdump: This is the name of the command-line tool used to interpret and display the UTMP file.
• -r: This is an option or flag for the utmpdump command, specifying that the UTMP file to be analyzed is the one specified by the ${dumpfile} variable.
• ${dumpfile}: This is a placeholder for the actual file path/name of the UTMP file that you want to analyze. You need to replace ${dumpfile} with the appropriate file path in order for the command to work correctly.
• >: This is a redirection operator in the command-line shell, used to redirect the output of the command to a file.
• ${-var-log-wtmp}: This is another placeholder referring to the file path/name where you want to save the output of the utmpdump command. You need to replace ${-var-log-wtmp} with the desired file path.

In summary, the command utmpdump -r ${dumpfile} > ${-var-log-wtmp} reads the specified UTMP file, interprets its contents, and then writes the analyzed output to the specified file path.