git：如何更新main分支

fetch - Download objects and refs from another repository

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git fetch --prune --all
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git switch main
git fetch [origin] [main]
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git fetch origin main:main

pull - Fetch from and integrate with another repository or a local branch

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git switch main
git pull [origin] [main]
git pull --rebase

merge - Join two or more development histories together

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git switch main
git merge origin/main

rebase - Reapply commits on top of another base tip

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git switch main
git rebase origin/main
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git rebase origin/main main
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git rebase --onto <newbase> <upstream> <branch>
# <newbase> default: <upstream>
# <branch> default: HEAD

branch - List, create, or delete branches

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git branch main

switch - Switch branches

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git switch -c main

restore - Restore working tree files

checkout - Switch branches or restore working tree files

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git checkout main

reset - Reset current HEAD to the specified state

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git switch main
git reset origin/main