alexander@goblin /tmp $ cat ShowMesh.unv
2419
2420
2421
alexander@goblin /tmp $ cat test.sh
temp='2420'
while read LINE
do
    if [[ $LINE = $temp ]];
    then
        echo "True"
    else
        echo "False"
    fi
done < ShowMesh.unv
alexander@goblin /tmp $ sh test.sh
False
True
False