useful way to backup a whole repository from on remote to another remote server on an Unix base system

git_repo_backup.sh

# define a full backup of a git repository from one remote server to another one

origin="https://remote-source/repository.git";

target="https://remote-target/repository.git";

workDir="temp-directory";

mkdir $workDir

cd $workDir

git clone --mirror $origin .

git remote set-url --push origin $target

git show-ref | cut -d' ' -f2 | grep 'pull' | xargs -r -L1 git update-ref -d

git push --mirror

cd ..

rm -rf $workDir

terminal_command.txt

mkdir temp \
&& cd temp \
&& git clone --mirror https://remote-source/repository.git . \
&& git remote set-url --push origin https://remote-target/repository.git \
&& git show-ref | cut -d' ' -f2 | grep 'pull' | xargs -r -L1 git update-ref -d \
&& git push --mirror \
&& cd .. \
&&  rm -rf temp

• Duplicating a repository | GitHub Help