ssh_find_agent is a tool for locating existing ssh compatible agent processes (e.g., ssh-agent, gpg-agent, gnome-keyring, osx-keychain); and, optionally, setting SSH_AUTH_SOCK accordingly.
Somewhere in shell initialization (~/.bashrc or ~./.zshrc)
. ssh_find_agent.shAdd the following to automatically choose the first agent
ssh_find_agent -a
if [ -z "$SSH_AUTH_SOCK" ]
then
eval $(ssh-agent) > /dev/null
ssh-add -l >/dev/null || alias ssh='ssh-add -l >/dev/null || ssh-add && unalias ssh; ssh'
fi... or, as ssh_find_agent with -a or -c returns non-zero if it cannot find a live-agent, simply:
ssh_find_agent -a || eval $(ssh-agent) > /dev/nullTo choose the agent manually run
ssh_find_agent -cTo list the agents run
ssh_find_agentNOTE: The choose option is Useful when you actually want multiple agents forwaded. eg. pairing