删除所有本地git分支，但保留主

git branch | grep -v "main" | xargs git branch -D 

要删除除当前已签出的分支之外的所有分支:

for b in `git branch --merged | grep -v \*`; do git branch -D $b; done

我建议在前几次将git branch -D $b更改为echo $b，以确保它删除了你想要的分支。

根据这里的一些答案的组合-如果你想保留远程上存在的所有分支，但删除其余的，下面的联机程序将会做到这一点:

git for-each-ref --format '%(refname:short)' refs/heads | grep -Ev `git ls-remote --quiet --heads origin | awk '{print substr($2, 12)}'| paste -sd "|" -` | xargs git branch -D

同时删除多个本地分支

# delete all local unmerged branches
git branch --no-merged | egrep -v "(^\*|master|dev)" | xargs git branch -D
# delete all local branches (merged and unmerged).
git branch | egrep -v "(^\*|master|dev)" | xargs git branch -D  

删除远程分支

# Deleting non-existent tracking branches
git remote prune <remote> --dry-run
# Deleting a single remote branch
git push <remote> --delete <branch>
# Deleting many remote branches at once
git branch -r --merged | egrep -v "(^\*|master|dev)" | sed 's/origin\///' | xargs -n 1 git push origin --delete

源

'git branch -d'子命令可以删除多个分支。所以，简化@sblom的答案，但增加了一个关键的xargs:

git branch -D `git branch --merged | grep -v \* | xargs`

或者，进一步简化为:

git branch --merged | grep -v \* | xargs git branch -D 

重要的是，正如@AndrewC所指出的，不鼓励使用git分支来编写脚本。要避免使用，可以使用如下语句:

git for-each-ref --format '%(refname:short)' refs/heads | grep -v "master\|main" | xargs git branch -D

删除时要谨慎!

$ mkdir br
$ cd br; git init
Initialized empty Git repository in /Users/ebg/test/br/.git/
$ touch README; git add README; git commit -m 'First commit'
[master (root-commit) 1d738b5] First commit
 0 files changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 README
$ git branch Story-123-a
$ git branch Story-123-b
$ git branch Story-123-c
$ git branch --merged
  Story-123-a
  Story-123-b
  Story-123-c
* master
$ git branch --merged | grep -v \* | xargs
Story-123-a Story-123-b Story-123-c
$ git branch --merged | grep -v \* | xargs git branch -D
Deleted branch Story-123-a (was 1d738b5).
Deleted branch Story-123-b (was 1d738b5).
Deleted branch Story-123-c (was 1d738b5).

对于powershell，这将工作:

git branch --format '%(refname:lstrip=2)' --merged `
    | Where-Object { $_ -ne 'master' } `
    | ForEach-Object { git branch -d $_ }