useful git command

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markdown some useful git command from my experience in case…
including:
push your local branch to remote repo
build up our work after git clone others
add and commit when in the right branch

NEVER ADD BIG FILE>100M OTHERWISE YOU WILL DIE….

  • if your want to push your local branch to remote repo
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    // if you update origin(remote) branch somewhere else, want to fetch the update
    git fetch
    // then can perform merge

    // very useful to check the branch infomation for remote
    // another one is
    git show-ref
    """
    de2138ba78c41d27f7c3ce96da6693833c35774d refs/heads/ft2mat
    d56dd7b77591ef21b7a21ed7cb3e2ee91b542d22 refs/heads/xh
    d56dd7b77591ef21b7a21ed7cb3e2ee91b542d22 refs/remotes/origin/HEAD
    75a02a5638c7fabd77be176898ec25f24e5c7816 refs/remotes/origin/features
    51553de1b544a7dde3e0e17607c3ca1038401525 refs/remotes/origin/workLocal
    d56dd7b77591ef21b7a21ed7cb3e2ee91b542d22 refs/remotes/origin/xh
    """
    // it means that, now we have local branch `ft2mat` but it is not in the remote repo, in this case, we are not able to `push origin/ft2mat` since the repo ft2mat does not exist
    // you will meet:
    # fatal: 'origin/ft2mat' does not appear to be a git repository
    # fatal: Could not read from remote repository.

    // then run:
    $ git push --all -u

    // show ref:
    $ git show-ref
    """
    de2138ba78c41d27f7c3ce96da6693833c35774d refs/heads/ft2mat
    d56dd7b77591ef21b7a21ed7cb3e2ee91b542d22 refs/heads/xh
    d56dd7b77591ef21b7a21ed7cb3e2ee91b542d22 refs/remotes/origin/HEAD
    75a02a5638c7fabd77be176898ec25f24e5c7816 refs/remotes/origin/features
    de2138ba78c41d27f7c3ce96da6693833c35774d refs/remotes/origin/ft2mat
    51553de1b544a7dde3e0e17607c3ca1038401525 refs/remotes/origin/workLocal
    d56dd7b77591ef21b7a21ed7cb3e2ee91b542d22 refs/remotes/origin/xh
    """
    // now we can 
    $ git push origin ft2mat

    !done

after clone a repo from others, we may want to build up our work on it without push our work to others’ repo

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// first check the origin
$ git remote -v
origin  <other repo>.....

// then change the origin into ours
$ git remote set-url origin <https://github.com/ZENGXH/caff>

// check again:
$ git remote -v
"""
origin  https://github.com/ZENGXH/caff (fetch)
origin  https://github.com/ZENGXH/caff (push)
"""

!done

2015/11/2
git真的是要好好学
比如说：
在不确定自己的branch的情况下不要随便add和commit。
不add和commit的话checkout new branch不会失去本地文件的。

以后要注意多和master merge要不分支越走越远，很容易就回不去了…T T