如果您使用的是Windows，您可以使用Windows Powershell或Powershell 7以及Out GridView来创建一个漂亮的分支列表，并用鼠标选择要删除的分支：

git branch --format "%(refname:short)" --merged  | Out-GridView -PassThru | % { git branch -d $_ }

单击“确定”后，Powershell会将这些分支名称传递给gitbranch-d命令并删除它们

使用Git版本2.5.0：

git branch -d `git branch --merged`

下面创建一个别名gitcleanup，其中包含一个可选参数分支。默认情况下，它使用远程源的默认分支。已合并到此中的每个分支都将被删除。还有一个-d/-dryrun选项，用于显示将删除的内容。

安装程序

git config --global alias.cleanup '!COMMAND="git branch -D"; while [[ $# -gt 0 ]]; do case "$1" in -d|--dryrun) COMMAND="echo"; shift; ;; *) MAIN_BRANCH="$1"; shift;; esac; done; MAIN_BRANCH="${MAIN_BRANCH:-$(git symbolic-ref refs/remotes/origin/HEAD)}"; git for-each-ref --merged="$MAIN_BRANCH" --no-contains="$MAIN_BRANCH" --format="%(refname:short)" refs/heads/ | xargs -n1 -r $COMMAND;#'

用法：

git cleanup             # delete all branches that have been merged into origin/HEAD
git cleanup master2     # delete all branches that have been merged into master2
git cleanup master2 -d  # do a dryrun (show names of branches that would be delted)

可读代码

谁能读到那句“oneliner”？好了，给你

COMMAND="git branch -D";
while [[ $# -gt 0 ]]; do
  case "$1" in
    -d|--dryrun)
      COMMAND="echo"; 
      shift; 
      ;; 
    *)
      MAIN_BRANCH="$1";
      shift
    ;;
  esac;
done;
MAIN_BRANCH="${MAIN_BRANCH:-$(git symbolic-ref refs/remotes/origin/HEAD)}"; 
git for-each-ref --merged="$MAIN_BRANCH" --no-contains="$MAIN_BRANCH" --format="%(refname:short)" refs/heads/ | xargs -n1 -r $COMMAND;
#

与其他答案有什么不同？

使用--no contains选项过滤掉标识分支（所有其他被删除的分支都已合并到其中的分支），而不是grep-v（如果您特定于分支并指定refs/heads/master，则效果更好）使用远程HEAD检查默认分支名称具有一个参数，用于指定要用作合并主节点的分支具有干式运行选项

基于这些答案，我也制作了自己的Bash脚本来实现这一点！

它使用gitbranch--merged和gitbranch-d删除已合并的分支，并在删除之前提示您输入每个分支。

merged_branches () {
    local current_branch=$(git rev-parse --abbrev-ref HEAD)
    for branch in $(git branch --merged | cut -c3-)
      do
        echo "Branch $branch is already merged into $current_branch."
        echo "Would you like to delete it? [Y]es/[N]o "
        read REPLY
        if [[ $REPLY =~ ^[Yy] ]]; then
            git branch -d $branch
        fi
    done
}

我使用以下Ruby脚本删除已经合并的本地和远程分支。如果我对一个有多个遥控器的存储库执行此操作，并且只想从一个遥控器中删除，那么我只需在遥控器列表中添加一个select语句，即可获得所需的遥控器。

#!/usr/bin/env ruby

current_branch = `git symbolic-ref --short HEAD`.chomp
if current_branch != "master"
  if $?.exitstatus == 0
    puts "WARNING: You are on branch #{current_branch}, NOT master."
  else
    puts "WARNING: You are not on a branch"
  end
  puts
end

puts "Fetching merged branches..."
remote_branches= `git branch -r --merged`.
  split("\n").
  map(&:strip).
  reject {|b| b =~ /\/(#{current_branch}|master)/}

local_branches= `git branch --merged`.
  gsub(/^\* /, '').
  split("\n").
  map(&:strip).
  reject {|b| b =~ /(#{current_branch}|master)/}

if remote_branches.empty? && local_branches.empty?
  puts "No existing branches have been merged into #{current_branch}."
else
  puts "This will remove the following branches:"
  puts remote_branches.join("\n")
  puts local_branches.join("\n")
  puts "Proceed?"
  if gets =~ /^y/i
    remote_branches.each do |b|
      remote, branch = b.split(/\//)
      `git push #{remote} :#{branch}`
    end

    # Remove local branches
    `git branch -d #{local_branches.join(' ')}`
  else
    puts "No branches removed."
  end
end

Git Sweep在这方面做得很好。