tmux の unix ドメインソケットが消えた時の対処 ref: http://qiita.com/__hage/items/db024acea35575121b25

file0.txt

% mkdir -m700 /private/var/folders/<中略>/T/tmux-501
% killall -SIGUSR1 tmux

file1.txt

function tmux-remake-socket () {
    if [ ! $TMUX ]; then
        return
    fi
    tmux_socket_file=`echo $TMUX|awk -F, '{print $1}'`
    if [ ! -S $tmux_socket_file ]; then
        mkdir -m700 `dirname $tmux_socket_file` 2> /dev/null
        killall -SIGUSR1 tmux
    else
        echo tmux unix domain socket exists! nothing to do.
    fi
    unset tmux_socket_file
}