More on Conditionals

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    #! /bin/bash
    
    read X
    read Y
    read Z
    
    if [ "$X" -eq "$Y" ] && [ "$Y" -eq "$Z" ];
    then
    echo "EQUILATERAL"
    elif [ "$X" -eq "$Y" ] || [ "$X" -eq "$Z" ] || [ "$Y" -eq "$Z" ];
    then 
    echo "ISOSCELES"
    else
    echo "SCALENE"
    fi