dust:tldr:211ad

The command "dust --number-of-lines ${30}" is using the "dust" tool with a parameter called "number-of-lines" set to the value of 30.

Here's a breakdown of what each part of the command does:

• "dust": Refers to the "dust" tool, which is likely a command-line utility used for analyzing disk space usage.
• "--number-of-lines": This is an option or flag specific to the "dust" tool. It indicates that we want to specify the number of lines to be displayed in the output.
• "${30}": Using the curly braces and a dollar sign, this syntax is used to reference a variable called "30". The actual value of this variable might have been set elsewhere in the code or script.

Without additional information, it is difficult to provide more specifics about how the "dust" tool uses the "number-of-lines" parameter and what the variable "30" represents.