Synchronise tmux's ssh env variables after reconnection

tmux_sync_env.sh

# Sync the environment of an existing shell
#
#  tmux already updates the environment according to
#  the update-environment settings in the config. However
#  for existing shells you need to sync from from tmux's view
#  of the world.
function tmux_sync_env
{
    ssh_auth_sock=`tmux showenv | grep "^SSH_AUTH_SOCK"`
    ssh_connection=`tmux showenv | grep "^SSH_CONNECTION"`
    export ${ssh_auth_sock}
    export "${ssh_connection}"
}
alias tse='tmux_sync_env'