What output does the command seq 10 produce?

Question

Options

• AA continuous stream of numbers increasing in increments of 10 until the command is stopped.
• BIt creates no output because a second parameter is missing.
• CThe number 0 through 9 with one number per line.
• DThe number 10 to standard output.
• EThe numbers 1 through 10 with one number per line.

• A
  17% (8)
• B
  2% (1)
• C
  6% (3)
• D
  4% (2)
• E
  71% (34)

Explanation

seq 10 generates the integers 1 through 10, one per line, to standard output - making E correct. The seq command with a single argument treats that argument as the upper bound, starting from 1 with an increment of 1 by default.

• A is wrong: seq is not an infinite stream; it terminates after reaching the upper bound.
• B is wrong: a single argument is perfectly valid for seq; the second parameter is optional.
• C is wrong: seq starts at 1, not 0 - zero-based counting would require seq 0 9.
• D is wrong: seq 10 produces ten numbers (1–10), not just the single number 10.

Memory tip: Think of seq N as "sequence from 1 to N" - one argument means the end, and it always starts at 1 unless you tell it otherwise (e.g., seq 0 9 or seq 2 2 10).

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