How to bulk create copies of files with suffixes?

Question

linux

There are files:
file1.test
file2.test
file3.test It is

necessary to copy them 50 times to the same directory naming according to the principle:
file1_1.test
file2_1.test
file3_1.test
file1_2.test
file2_2.test
file3_2.test
etc.

Is there a way to automate this in the Linux console?

Answer 1

for i in {1..50}; do cp file1.test file1_$i.test;done