Thilakeswar

1. Rename your local branch.
      If you are on the branch you want to rename:
        git branch -m new-name
      If you are on a different branch:
        git branch -m old-name new-name

2. Delete the old-name remote branch and push the new-name local branch.
      git push origin :old-name new-name

3. Reset the upstream branch for the new-name local branch.

Thilakeswar

Step - 1 : Set git user name and password,
           i) For setting globally, 
                 ->Hit below commands
                       git config --global user.name "FIRST_NAME LAST_NAME"
                       git config --global user.email "MY_NAME@example.com"
                 ->Alternatively open ~/.gitconfig and add/edit the below information,
                       [user]
                          name = FIRST_NAME LAST_NAM
                          email = MY_NAME@example.com
           ii) If you have multiple accounts in Gitlab, Github and using different ones for each of your local repository, you need to update for each repository, if it varies from the global ones.

Thilakeswar

* Search and replace across multiple lines :
     :%s/<SearchString>/<ReplaceString>/g
     Eg: :%s/Vijay/Thalapathy/g
* Delete multiple lines based on SearchString :
     :g/<SearchString>/d
     Eg: :g/^Garbage.*$/d
* Delete multiple lines based on range :
     :<StartRange>,<EndRange>d
     Eg: :1,13d
     

Thilakeswar

#According to Apple,
#zsh (Z shell) is the default shell for all newly created user accounts, starting with macOS Catalina.

#Run the command 'echo $SHELL' to find your default shell.
#If result is '/bin/bash', then bash is the default shell else if result is '/bin/zsh', then it's zsh

#Copy the code mentioned below,
#in '~/.bashrc' if bash is your default shell
#in '~/.zshrc' if zsh is your default shell