tail:tldr:a1af0

The command "tail -c ${8} ${filename}" is used to display the last 8 bytes of the specified file.

Here's a breakdown of the command:

• "tail" is a command-line utility in Unix-like operating systems that displays the last part of a file.
• "-c" is an option in the tail command that specifies the number of bytes to display instead of lines. In this case, it is set to ${8}, which indicates that the number of bytes is determined by the value of the variable "8".
• "${8}" is a variable that holds a specific number, in this case, 8. It can be dynamically assigned to any desired value.
• "${filename}" is another variable that represents the name of the file you want to display the last 8 bytes of. It can also be dynamically assigned to any desired filename.

So when you execute the command "tail -c ${8} ${filename}", it will display the last 8 bytes of the specified file.