Window Subsystem for Linux ssh-agent Configuraton

.bashrc

# ... more above ...

# wsfl bash is not a login shell
if [ -d "$HOME/bin" ] ; then
    PATH="$HOME/bin:$PATH"
fi

# ssh-agent configuration
if [ -z "$(pgrep ssh-agent)" ]; then
    rm -rf /tmp/ssh-*
    eval $(ssh-agent -s) > /dev/null
else
    export SSH_AGENT_PID=$(pgrep ssh-agent)
    export SSH_AUTH_SOCK=$(find /tmp/ssh-* -name agent.*)
fi

if [ "$(ssh-add -l)" == "The agent has no identities." ]; then
    ssh-add
fi

FYI this is broken in in 18.04 Ubuntu on Windows 10 WSL
microsoft/WSL#3183

@gomker Fixed in Windows 10 build 17711. But characters not in ASCII display as squares in this build. 😢