Multiple choice technology programming languages

The valid conditional operator

  1. -NE

  2. -GT

  3. -LT

  4. -eq
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Shell test operators are case-sensitive and follow specific patterns. -eq (lowercase) is the correct numeric equality operator. -NE, -GT, -LT are invalid - the correct forms would be -ne, -gt, -lt (lowercase). These operators work only for integers, not strings.

AI explanation

The correct answer is -eq. This is testing shell/POSIX test (or [ ]) conditional operators, which are case-sensitive and always lowercase: -eq (equal), -ne (not equal), -gt (greater than), -lt (less than), -ge, -le. As written, -NE, -GT, -LT are uppercase, which the shell does not recognize as valid comparison operators — a script using them would fail with an 'unknown operator' or similar error. -eq is the only option that matches the actual required lowercase syntax, so it's the valid conditional operator among the choices.

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