関連ワード:  github delete all branches except main    git delete all branches except main    git delete all branches except master    git delete all branches except master and develop    git delete all branches except master remote    git delete all local branches except main    git delete all local branches except master    git delete all local branches except master powershell    git delete all local branches except master windows    git remove all remote branches except master  
結果 : github delete all branches except main