Source: https://victoria.dev/blog/how-to-write-bash-one-liners-for-cloning-and-managing-github-and-gitlab-repositories/
Given a list of GitHub URLs in the file gh-repos.txt, like this:
git@github.com:username/first-repository.git
git@github.com:username/second-repository.git
git@github.com:username/third-repository.git