CMD: Brugerinput inden 5 sekunder

Hej Eksperter

Jeg forsøger at lave et simpelt .cmd-script, som beder brugeren indtaste en værdi, inden der er gået 5 sekunder.

Min kode:

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#!/bin/bash
# This script will test if you have given a leap year or not.

echo "Type the year that you want to check (4 digits), followed by [ENTER]:"

read -t 5 year

if (( ("$year" % 400) == "0" )) || (( ("$year" % 4 == "0") && ("$year" % 100 !=
"0") )); then
  echo "$year is a leap year."
else
  echo "This is not a leap year."
fi

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Fejlen:

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'#!' is not recognized as an internal or external command,
operable program or batch file.
'#' is not recognized as an internal or external command,
operable program or batch file.
"Type the year that you want to check (4 digits), followed by [ENTER]:"
'read' is not recognized as an internal or external command,
operable program or batch file.
("$year" was unexpected at this time.

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Kan I hjælpe?
På forhånd tak!

Med venlig hilsen
Tobias