The seq command in Linux is used to print a sequence of numbers, which can be piped to other
commands or used in for loops and bash scripts1. The command can generate a list of integers or
real numbers, with options to control the start, end, and increment of the sequence. The general
syntax of the command is seq [options] specification1.
If you launch seq with a single number as a command-line parameter, it counts from one to that
number. It then prints the numbers in the terminal window, one number per line2. For example, seq
10 will produce the following output:
1
2
3
4
5
6
7
8
9
10
Therefore, the correct answer is B. The numbers 1 through 10 with one number per line.
Reference: 1: 10+ Seq Commands with Examples in Linux – LinuxWizardry 2: How to Use the seq
Command on Linux - How-To Geek