shuf:tldr:837f4

This command is using the shuf command in Linux to produce a random sample of numbers generated between 1 and 10, with a specified number of repetitions.

Here is a breakdown of the command:

• shuf: This is the actual command that generates random permutations. It can shuffle text or produce random numbers.
• --head-count=${3}: This option specifies the number of lines or items to print. ${3} is a placeholder for the third argument passed to the command. So, the actual number of lines/items to print will be determined by the third argument.
• --input-range=${1-10}: This option specifies the range of values to choose from. It generates random numbers between the values specified in the ${1-10} range. ${1-10} is a placeholder for a range of numbers from 1 to 10. So, the actual range of values will be determined by the first and second arguments.
• --repeat: This option instructs shuf to repeat the random selection from the input range. This means that the same numbers can be randomly selected multiple times.

Overall, this command will produce a random selection of numbers between 1 and 10, repeated as specified by the third argument.