Git For Beginners
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git init | git init | ||
</pre> | </pre> | ||
| + | |||
| + | == Review changes == | ||
| + | Once you have made changes to the files in a git repository, you can review your edits using following commands. | ||
| + | |||
| + | To list all new or modified files to be commited: | ||
| + | <pre> | ||
| + | [ravi89@login001 Tutorial_June_2018]$ git status | ||
| + | # On branch master | ||
| + | # | ||
| + | # Initial commit | ||
| + | # | ||
| + | # Untracked files: | ||
| + | # (use "git add <file>..." to include in what will be committed) | ||
| + | # | ||
| + | # test | ||
| + | nothing added to commit but untracked files present (use "git add" to track) | ||
| + | [ravi89@login001 Tutorial_June_2018]$ | ||
| + | </pre> | ||
| + | |||
| + | To show file differences that have not yet been staged for a commit: | ||
| + | <pre> | ||
| + | [ravi89@login001 Tutorial_June_2018]$ git diff | ||
| + | diff --git a/test b/test | ||
| + | index 19e2dd9..d04e379 100644 | ||
| + | --- a/test | ||
| + | +++ b/test | ||
| + | @@ -1 +1,3 @@ | ||
| + | Show git status | ||
| + | + | ||
| + | +Demo git diff | ||
| + | [ravi89@login001 Tutorial_June_2018]$ git status | ||
| + | </pre> | ||
| + | |||
| + | To see the file differences for file that have been staged, use: '''git diff --staged''' | ||
| + | |||
| + | == Commit a file == | ||
| + | To commit a file you first need to add the file where you have made changes, i.e. stage the file: | ||
| + | <pre> | ||
| + | git add CHANGED_FILE | ||
| + | </pre> | ||
| + | This snapshots/stages the file in preparation for versioning. | ||
| + | |||
| + | Next commit these changes to record file snapshots permanently in version history | ||
| + | <pre> | ||
| + | git commit -m "YOUR_COMMIT_MESSAGE" | ||
| + | </pre> | ||
| + | |||
| + | == Git History == | ||
Revision as of 15:42, 18 June 2018
Git is a version control system for tracking changes in computer files and coordinating work on those files among multiple people.
Contents |
Configuration
To configure user information for all local repositories use the following commands:
- Set the name you want attached to your commit transactions.
git config --global user.name "[name]"
- Set the email you want atached to your commit transactions
git config --global user.email "[email address]"
Initializing a git repository
To initialize a new git repository, run:
[ravi89@login001 Tutorial_June_2018]$ git init test Initialized empty Git repository in /data/user/ravi89/HPC_Training/Tutorial_June_2018/test/.git/ [ravi89@login001 Tutorial_June_2018]$
To make an already existing directory, a git repo, run:
cd EXISTING_DIRECTORY git init
Review changes
Once you have made changes to the files in a git repository, you can review your edits using following commands.
To list all new or modified files to be commited:
[ravi89@login001 Tutorial_June_2018]$ git status # On branch master # # Initial commit # # Untracked files: # (use "git add <file>..." to include in what will be committed) # # test nothing added to commit but untracked files present (use "git add" to track) [ravi89@login001 Tutorial_June_2018]$
To show file differences that have not yet been staged for a commit:
[ravi89@login001 Tutorial_June_2018]$ git diff diff --git a/test b/test index 19e2dd9..d04e379 100644 --- a/test +++ b/test @@ -1 +1,3 @@ Show git status + +Demo git diff [ravi89@login001 Tutorial_June_2018]$ git status
To see the file differences for file that have been staged, use: git diff --staged
Commit a file
To commit a file you first need to add the file where you have made changes, i.e. stage the file:
git add CHANGED_FILE
This snapshots/stages the file in preparation for versioning.
Next commit these changes to record file snapshots permanently in version history
git commit -m "YOUR_COMMIT_MESSAGE"
