git

• https://www.sitereq.com/post/3-ways-to-create-git-local-and-remote-repositories

ssh-agent

ssh-agent is a program to hold private keys used for public key authentication.

eval `ssh-agent` # Starts the agent, returns the pid

ssh-add

ssh-add – adds private key identities to the authentication agent (above).

ssh-add <path to key>           # adds the key to the agent
sudo chmod 600 <path to key>    # for WARNING: UNPROTECTED PRIVATE KEY FILE!
ssh-add -l                      # lists loaded keys

remove a submodule

To remove a submodule you need to:

1. Delete the relevant section from the .gitmodules file.
2. Stage the .gitmodules changes git add .gitmodules
3. Delete the relevant section from .git/config.
4. Run git rm –cached path_to_submodule (no trailing slash).
5. Run rm -rf .git/modules/path_to_submodule (no trailing slash).
6. Commit git commit -m “Removed submodule "
7. Delete the now untracked submodule files rm -rf path_to_submodule

Initialize a local git repo

git init .              # If you are in the folder
git init project_name   # If you have not created the folder yet.

Settings (System, Global and Local)

System level

applied to every user on the system and all their repositories

git config --list --system        # to view (may need sudo)
git config --system color.ui true # to set, 
git config --edit --system        # to edit system config file, 

Global level

values specific personally to you, the user.

git config –list –global # to view git config –global user.name xyz # to set git config –edit –global # to edit global config file

Repository level

specific to that single repository

git config –list –local # to view, git config –local core.ignorecase true # to set, (–local optional) git config –edit –local (–local optional) # to edit repository config file,

How to view all settings?

git config –list # showing system, global, and (if inside a repository) local configs git config –list –show-origin # also shows the origin file of each config item

How to read one particular config?

git config user.name # to get user.name, for example.

You may also specify options –system, –global, –local to read that value at a particular level.