read:tldr:48f7d

This command is a shell command in Unix-like operating systems that is used to read input from a user and assign it to a variable.

Here's a breakdown of its elements:

• read: This is the command itself. It is used to read input from the user or another source.
• -n ${character_count}: The -n option is used to specify the number of characters to be read from the input. ${character_count} is a placeholder variable that should be replaced with a specific number. For example, -n 10 will read 10 characters from the input.
• ${variable}: This is the name of the variable to which the input will be assigned. ${variable} is another placeholder that should be replaced with the actual variable name. For example, if you want to assign the input to a variable called input, you would replace ${variable} with input.

To summarize, the command read -n ${character_count} ${variable} prompts the user to provide input, reads a specified number of characters from the input, and assigns it to a variable.