duplicate-files
Duplicate files easily.
Install
npm install -g duplicate-files
Run
duplicate-files ./some-directory --find-pattern 'spec\.js$' \--replace-pattern 'spec\.js$' --string test.js
A dry run before you break things
DEBUG=duplicate-files* duplicate-files ./some-directory --dry-run \--find-pattern 'spec\.js$' --replace-pattern 'spec\.js$' --string test.js