I want to add a new line character '\n' at the end of each line in my file. 

Here is my code:

```
while read -r line
do
echo "$line"|awk -F'\t' '{
        print($1);
        for (i=2; i<=NF; i++){
                split($i,arr,":")
                print(arr[1])
        };
}' | tr '\n' '\t' | tr '|' ' ' | tr '/' ' ' | {END OF LINE, WANNA ADD NEW LINE} 
>> genotype_processed.txt

done < file_in

```

Also, is there any way that I can combine the 3 tr commands into one? They just look too redundant.

Many thanks!

**EDIT**:

The input looks like this:

```
id123    0|1:a:b:c    0/0:i:j:k    ...
id456    1/1:j:f:z    1|0:.:j:v    ...
...

```

The desired output:

```
id123    0 1    0 0    ...
id456    1 1    1 0    ...
...

```