Git is software for tracking changes in any set of files, usually used for coordinating work among programmers collaboratively developing source code during software development. Its goals include speed, data integrity, and support for distributed, non-linear workflows
Step 1: Install & Setup
signup to GitHub
yum install git -y
git config --global user.name "Sherin"
git config --global user.email "sherinsha1@gmail.com"
git config --list
Step2:
Create a git Directory
git init
git status
git add filename
git commit -m "1st commit from SHERINS" // Commited to the local repository and created a commit ID
git log
git show commitID
git remote add origin https://github.com/sherinsha1/integralhost.git
Step 3: git push -u origin master // It will sync the changes and files to Central repo
( We have to enter the Git account username and Passcode. Password wont work To get passcode Login to Git > Settings > Developer settings > Personal access Token > Generate Token > Enter passcode of Github account> Give any name and select all permissions > Generate Token)
Step 4: git pull origin master // It will download the files or changes from Central repo to local repo
Create a file in the git work space named .gitignore to ignore
git add . // It will add all files in the current directory to loc
git log --oneline //It will list only the commit ID and commit messages
git log -1 //It showonly the first line of the log
git log --grep keyword
git branch //List the branch of the existing directory
git branch new branch //creating a new branch
git checkout newbranch //switching current branch to new branch
git branch -d branchname // To delete a branch
git merge branchname
git stash // This command move re
git stash list
git stash clear
git revert // Revert the commit ID that recently published
git reset // Before commit, the changes will be reset
git rm filename //to remove the file from work space
git tag
Scenario:
Perform step 1 and 2 in two Servers
Perform Step 3 on the server which want to sync changes to central repo
Perform Step 4on the server which want to down load/sync files or changes from the central Repo
Git takes incremental backup in local index
Pull & Fetch
If we use fetch all commit Ids will be copied from central to local but we cannot see. Only after the merge those commit IDs we can see
With Pull command, all commit Ids will be copied from central to local and we can see them.
Git Difference:
git diff master origin/master //How many commit Ids there is difference between, local repo and central
Delete Branch
git branch -d branchname
git push -u all //all Branches will be pushed to central repo
git push origin branchname //Push files to different branches
git cherry-pick <commit ID> //merge a particular commit ids
git hook /// to set notification but normally it is nor using
git merge/rebase //Merging is a safe option that preserves the entire history of your repository, while rebasing creates a linear history by moving your feature branch onto the tip of main .
git sqash
git biselect