Basic git commands for beginners with examples


Git is a popular version control system (VCS). Wait , what is a Version Control System ?

" Version Control System keeps track of the records changes to a set of files over time " 

Why we need Git or any other VCS ? Only to keep the code in a remote repository as a backup ? Is VCS a waste of time ? Lets find answers for these questions.

When we are creating individual projects we may not want to use a VCS. But VCS is very useful for team projects.

Imagine you are working on a team project without using a VCS. Each of your team members given individual tasks and plan is to combine those tasks at the end. But practically it would be a very difficult. There can be lots of redundant of codes, redundant of libraries,  sometimes combining costs lots of time and even may be unable to combine.

Imagine a scenario in which everybody can work under a same framework, every one do there part and add to a common repository so that different individuals can see who has committed (added the code),  when it is included, what are the changes etc. Life is so easy !



This is precisely what Version Control System capable for.


You always have a updated local repository (repository in your computer) of the remote repository (repository in VCS network) (pull). Changes you've made is first effects in your local repository. Then push(add) those changes to remote repository. 













Basic git commands


git branch : show which branch you are currently working

 



list down branches working on. start symbol shows the current branch working on




git status : current status of your local repository (modified files)




modified file with the path is shown red color




git diff path-to-file : show what are the changes of modified file




removed line of the file is shown with red color




git reset --hard HEAD : reset local repository


HEAD is now reset to current fix AAERESAA-19915



less .git/config : configure git configurations


git pull : update local repository from remote repository (pull changes from  remote repository to local)


git checkout – –track path-to-branch : changes the working path


git reset – –soft shaID : reset the state until given shaID

git add path-to-file : stage the file (ready the file to commit)


git commit -m “commit-message” : commit the file


git push origin branch-name : push to remote repository


gitk : shows the git repository browser

Comments

Post a Comment

Popular posts from this blog

Library Management System: Database Project - Part III - Database Design

Image
  LMS   Library Management System for Imaginary University    2nd year Database Project There are Four main entities Item : a book or as CD which can be borrow from the library Member : a registered member of the library who will be a student or a staff member Location : the physical location where an item is stored in the library Operator : a library staff member who will interact with members of the library. That is they will add/update data about members, transactions and items in the library Entity Relationship Diagram (ER Diagram) ER diagram There can be many copies of the same item (Book or CD). However since we need to identify each item separately so that each of them are given a unique id which is the 'item_id'. Storing common details of the same copies of items make redundancy, the details of items are decomposed into separate tables named 'book_details' and 'CD_details'. A member can borrow four books (or CDs) at a time and...
Read more

Library Management System: Database Project - Part I - Introduction

Image
  LMS   Library Management System for Imaginary University    2nd year Database Project Database management is a wide area of computer science which is essential in most of the applications in order to store and handle data proper and efficient way. Library management system is one of a most frequently used application of database management systems where there is a chunk of information to store and record daily. Background University of ABC is a imaginary university of about 12000 students and 1000 of staff. The library system of the university facilitates all students, academic and non academic staff by providing access to the library. Anyone of the university can read books or other documents at the library, but in order to borrow them one should register and get the membership. The membership is valid only for a year and that should be updated afterwards. After getting the membership, a member can borrow 4 books at a time and maximum burrowed period...
Read more

Library Management System: Database Project - Part V - Finalize Database

Image
  LMS   Library Management System for Imaginary University    2nd year Database Project In order to maximize the use of system resources to perform work as efficiently and rapidly as possible the views and indices to be used were confirmed and some of the views were decided to materialize. In the application a user can search a book based on its authors, title and subject as well as ISBN number. Therefore by creating indices on tilte, authors and subjects the database can access relevant entries more efficiently. Since the table book_details is not updated frequently this will not cause for any low performance of the database. book_details create index book_title on book_details(title); create index book_publisher on book_details(publisher); create index book_category on book_details(category); cd_details create index cd_title on cd_details(title); create index cd_publisher on cd_details(publisher); create index cd_category on cd_details(category);...
Read more