I am trying this simple `while` loop in bash.

My text file

```
# cat test.txt
line1:21
line2:25
line5:27
These are all on new line

```

My Script

```
# cat test1.sh
while read line
do
        awk -F":" '{print $2}'
done < test.txt

```

Output

```
# ./test1.sh
25
27

```

The output isn't printing the first line `$2` value. Could anyone please help me understand this case?