# How To - GIT

![logo@2x.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1609192583947/1TaujaiVh.png)
Website: https://git-scm.com

GIT Documentation - https://git-scm.com/doc


### Installing GIT 

```
brew install git
```

### Verify Installed GIT Version

```
git version
```

### Getting Help

```
git help <verb>
```

### Show Default Settings

```
git config --list --show-origin
```

### Setup Your GIT Identity

```
git config --global user.name "Ashutosh Kumar Sinha"
```
```
git config --global user.email ak_sinha@gmail.com
```

### Set Your Default Editor (VSCode)

```
git config --global core.editor "code --wait"
```

### Set Your Default DIFF Tool (VSCode)

```
git config --global diff.tool vscode
```
```
git config --global difftool.vscode.cmd "code --wait --diff $LOCAL $REMOTE"
```

### Set Your Default Merge Tool (VSCode)

```
git config --global merge.tool vscode
```
```
git config --global mergetool.vscode.cmd "code --wait $MERGED"
```

### Verify Your Settings

```
git config --list
```

### Initializing a Repository in an Directory

```
mkdir -p my_dev_project
```

```
cd /Users/user/my_dev_project
```

```
git init
```

### Set up a GitHub Account

Go to "Github.com" and click on "Sign up"

![Screen Shot 2021-01-05 at 10.04.55 PM.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1609909769494/rGla8C__O.png)

### Create a New Remote Repository in Github

Click on "+" on right top corner and select "New repository"

![Screen Shot 2021-01-05 at 10.08.36 PM.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1609909795459/Nj9uTIYLU.png)

Create a new repository by filling in the details

![Screen Shot 2021-01-05 at 10.08.54 PM.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1609909808192/-07opk7pb.png)

### Add the Remote Repository 

Copy the URL from Github for the new repository created earlier by clicking on "Code" green button on right corner

![Screen Shot 2021-01-05 at 10.14.14 PM.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1609910121207/qXwYU6wA9.png)

```
git remote add origin <URL>
```

### Ignoring Files

```
touch .gitignore
```

Example: 

* Ignore all files in any directory named build

build/

* Ignore doc/notes.txt

doc/*.txt

### Create a readme.md

```
touch readme.md
```

```
echo "This is a readme.md file." > readme.md
```

### Stage the readme.md

```
git add readme.md
```

### Commit the readme.md

```
git commit -m "Initial Commit"
```

### Checking the Status of Your Files

```
git status
```

### Upload the Committed File to Github

```
git push origin master
```

### Verify on Github Repository for the readme.md

![Screen Shot 2021-01-05 at 10.16.04 PM.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1609910183142/K8Ov6ZkjL.png)

### To See What You’ve Changed But Not Yet Staged

```
git diff
```

### Viewing the Commit History

May need to use "q" to quit.

```
git log
```
or use below command if you want it in a custom format 

```
git log --pretty=format:"%h - %an, %ar : %s"
```

### Viewing the Changes 

May need to use "q" to quit. You scroll thru using up and down arrow keys.

```
git log -p
```

### Modifying Commit

```
touch info.txt
```

```
echo "Another change added" >> info.txt
```

```
git commit -m 'Created info.txt'
```

Add another change

```
git add info.txt
```

Modify the commit

```
git commit --amend
```