How can I copy and paste text lines across different files in a bash script?

from number of files, need create new file each line of text sequence of respective lines original files. so, let's have 2 files structure this:

file1:

aaaa bbbb cccc

file2:

xxxx yyyy zzzz

i need combine them result like:

aaaaxxxx bbbbyyyy cccczzzz

how can bash script?

use paste command:

paste -d '' file1 file2

by default, paste joins lines tabs, need use -d option tell use empty string joining.

Primitatvve