https時代のgitアカウントを使い分ける方法 ref: https://qiita.com/1natsu172/items/a4a3357a0481440ec6a5

file0.txt

host github.com-main
 HostName github.com
 IdentityFile ~/.ssh/id_rsa_github
 User git

host github.com-sub
 HostName github.com
 IdentityFile ~/.ssh/id_rsa_github_sub
 User git

file1.txt

$ git clone git@github.com-main:username/repo.git

file10.txt

$ git credential-osxkeychain

Usage: git credential-osxkeychain <get|store|erase>

file11.txt

$ git clone https://hitonatsu@gitlab.com/1natsu172/example-private-repo.git

file12.txt

$ git clone https://hitonatsu@gitlab.com/1natsu172/example-private-repo.git
Password for 'https://hitonatsu@gitlab.com':

file13.txt

$ git remote -v
origin  https://hitonatsu@gitlab.com/1natsu172/example-private-repo.git (fetch)
origin  https://hitonatsu@gitlab.com/1natsu172/example-private-repo.git (push)

file2.txt

$ GIT_SSH_COMMAND="ssh -i ~/.ssh/id_rsa_example -F /dev/null" git clone example

file3.txt

$ git config core.sshCommand "ssh -i ~/.ssh/id_rsa_example -F /dev/null"

file4.txt

$ git config --global user.name "Mona Lisa"
$ git config --global user.email "email@example.com"

file5.txt

$ git config --local user.name "Mona Lisa"
$ git config --local user.email "email@example.com"

file6.txt

export GIT_COMMITTER_NAME="Mona Lisa"
export GIT_COMMITTER_EMAIL="email@example.com"
export GIT_AUTHOR_NAME="Mona Lisa"
export GIT_AUTHOR_EMAIL="email@example.com"

file7.txt

$ git clone https://gitlab.com/1natsu172/example-public-repo.git

file8.txt

$ git clone https://gitlab.com/1natsu172/example-private-repo.git
Username for 'https://gitlab.com': 
Password for 'https://gitlab.com':

file9.txt

$ git config --global credential.helper osxkeychain