In vim, how do I paste a column of text to the end of irregular length lines?

Question

I would like to paste a column of text at the end of irregular-length lines.

For example, I would like to paste the following:

SRR447882.fastq.gz
SRR         


        

Answer 1

Step 1 - goto to the start of the SPP... lines, then start Visual mode linewise with V (capital V), press j two times to get the desired lines selected then press y.

Step 2 - goto the start of the TIL0... lines, then start Visual mode linewise with V (capital V), press j two times to get the desired lines selected then type...

:s;$;\=' ' . split(@")[line('.')-line("'<")];g`

and press Enter.