keychain
Re-use ssh-agent and/or gpg-agent between logins. tldr-pages
On several platforms
Several platforms
Check for a running ssh-agent, and start one if needed
keychainIdentifyAlso check for gpg-agent
keychain --agents "gpg,ssh"IdentifyList signatures of all active keys
keychain --listIdentifyList fingerprints of all active keys
keychain --list-fpIdentifyAdd a timeout for identities added to the agent, in minutes
keychain --timeout minutesIdentify