The warehouse
We can initialize the directory already exists, the contents of the warehouse management
The first step is to create an empty warehouse, which is a prerequisite for subsequent operations
[root @ ci-node1 ~] # mkdir -p / the Data / git_test // Create a directory to a git repository [root @ ci-node1 ~] # cd / the Data / git_test // enter the directory [root @ ci-node1 git_test] # git init // initialize the warehouse to create an empty warehouse using the command git init initialized empty Git Repository in /data/git_test/.git/ // after an empty warehouse created under git_test .git folder will generate a hidden folder. This is what we created git repository, the default repository consists of a main branch, that master, the default action is performed on the main branch master. [the root @ CI -node1 git_test] # LL - A Total 0 drwxr -XR-X . 3 the root the root 18 is -Aug 24 00 : . 17 . drwxr -xr-x. 3 root root 22 Aug 24 00:13 .. drwxr-xr-x 7 root root 119 Aug 24 00:17 .git
Enter git repository
[git_test the root @ CI-node1] # CD .git / [the root CI @ - node1 .git] # LL Total 12 is drwxr -XR X- 2 the root the root . 6 -Aug 24 00 : . 17 branches // branch -rw-r-- r-- . 1 the root the root 92 -Aug 24 00 : . 17 config // profile -rw-R & lt - r-- . 1 the root the root 73 is -Aug 24 00 : . 17 description // profile -rw-R & lt - r-- . 1 root root 23 is -Aug 24 00 : . 17 the HEAD drwxr -XR X- 2 the root the root 242 -Aug 24 00 : . 17 Hooks // store hook script drwxr-X-XR 2 the root the root 21 is -Aug 24 00 : . 17 info drwxr -XR-X . 4 the root the root 30 Aug 24- 00 : 17 Objects // warehouse drwxr-the X-XR- 4 root root 31 Aug 24- 00:17 refs
Git repository base operations
Git four regions
Workspace: Workspace () is to create a git repository (git_test directory)
Index / Stage / Cached: staging area (it's like a balance area, temporarily save your changes) generally stored in "under .git directory" of the index file (.git / index) in, so we put the staging area is sometimes called the index (index)
Repository: local warehouse district has a hidden directory .git, this is not the work area, but the version of Git
repository.
Remote: a remote repository github gitlab
Git four states
Speaking in front of the Git has four regions, while the one on file change state level, the files in the Git area also has four states (Note that the file is not a state with Git area one to one), this is the first Git two important concepts.
Untracked: file is not tracked, the new status of the file, the newly created file, Git management were not recorded (not the file cache and warehouses) in the workspace
Modified: state is modified, by Git has managed files changes state (including changes in content, delete files), recorded in the workspace
Staged: after a not trace file, create a new file in the work area, added to the staging area, the state becomes Staged. Recorded in the document workspace change status notification Git, recorded in a temporary area
Unmodified: by file status (no change), recorded in a local warehouse / remote warehouse, has not been modified, this document does not make changes to the file on the local Git repository management,
(This file has a copy of these three areas is consistent in the work area, buffer zone, local warehouse, but not modified)
