basic_usage.txt

	GIT Basic Usage

-> git log related
git log
git log -p
git log --pretty=format:'%h:%s' --topo-order --graph
git log --pretty=format:'%h:%s' --date-order --graph
git reflog
git log -g

-> git tag releated
git tag -a tagname -m "comments"
git tag -d tagname

git push origin --tags
git push origin tagname

git push origin --delete tagname

- sync tags
git tag -l | xargs git tag -d 
git fetch --prune

-> git branch related
git branch -a
git push origin --delete <branchName>
git branch -m oldbranch newbranch     

# add remote branch to local
git remote add <repo> <remote_git_repo>
git fetch <repo>

e.g.
git remote add qingmin https://github.com/qingmin-liu/mtcp.git
git fetch qingmin

-> Drop/Clean all untracked modifications
git reset --hard
git reset --hard commit_id
git reset --soft commit_id

# Remove untracked directories in addition to untracked files.
git clean -xdf 

# Donot actually remove anything, just show what would be done.
git clean -xnd

-> patch related
git format-patch -1 commit_id
git diff commit_previous commit > mypatch.diff

-> git commit
git commit --amend

-> git cherry-pick from different repository
git format-patch
git am

-> git configuration
git config --global user.name "Qingmin Liu"
git config --global user.email "calmarrow@gmail.com"

git config user.name "Qingmin Liu"
git config user.email "calmarrow@gmail.com"

git config --global color.diff true
git config --global color.status true
git config --global color.branch true
git config --global color.ui true

git config --global core.editor vim

git commit --amend --author="Qingmin Liu <calmarrow@gmail.com>"

git config --global push.default simple

-> ignore filemode change
git config --global core.filemode false ==>~/.gitconfig
git config core.filemode false  ==>.git/config

-> build a git server
git init --bare <git_server_path> 

-> change git server path
git remote set-url origin <new_path> 

-> checkout a single branch
git clone -b branch_name --single-branch <git_server>

-> check only the specified depth 
git clone --depth=N <git_path>

If want to check old history, use:
git fetch --unshallow

-> git hash id abbrev configuration
git config core.abbrev 10

# Note:
Linux kernel script will automatically append it to UTS_RELEASE.
By default it's 7 digits. However you could change it with above
commands.