simple merge of CSV file

Question

I want to merge two CSV without any condition and no primary.It should be first row file1 and file2.

file1

id,name,city

file2

mobileno,address,email

output

id,name,city,mobileno,address,,email

can you please let me know how can i achive this output

Answer 1

Use paste and set the delimiter to comma as opposed to tab with -d:

paste -d, file1 file2