Adding all files in Git stages all changes in the working directory so they can be included in the next commit.
- Stages new, modified, and deleted files (using git add -A).
- Ensures all intended updates are included in the next commit.
Git Staging Area
The staging area is an intermediate step in Git that helps control what changes are included in a commit.
- Sits between the working directory and the repository.
- Allows reviewing and organizing changes before committing.
[Approach 1]: Using the git add command with the dot(.) notation
Step 1: Create a project or folder so all our files will be there. Put all your files there to add on git.
For creating a folder use command- mkdir folder-name
For creating a file use command- touch file-name
Folder Structure: Create a folder similar to that.
Step 2: Initialize git to that project root or folder.
git init 
Step 3: Add all files using dot(.) to git.
git add .And make a commit immediately
git commit -m "added all files"
Step 4: To see the log of your added file, just run this command
git logAnd log look likes this:
[Approach 2]: Using the git add command with the --all or -A flag
Step 1: Make some changes to all files so that turned into modified state, if a file modified then 'M' will be shown right side.
Step 2: To know the status of all files, just run this command.
git statusAnd you will see this.
Step 3: To add all files using --all or -A flag, run following command on terminal.
git add --all OR
git add -A
and then make a commit.
git commit -m "added all modified files"
Now we can check git log.
[Approach 3]: Adding all files by extension
In some cases, you may be interested in adding all files that have a specific extension : *.txt or *.js for example.
To add files with a specific extension, use the git add command with a wildcard and the file extension.
git add *.txt
git add *.js
Let's say, we have two js files, and we want to add both files to git, then follow these command.
In this way, We can easily add all files to git.