Light weight MoSH using Tmux and BASH

tssh

#! /bin/bash
# usage: tssh <host> <tmux target> [<ssh args>]
# requires ssh passwordless login to be setup and tmux to be installed on the remote machine

host=$1
target=$2
args=${*:3}
ssh="ssh -o ConnectTimeout=4 -o ServerAliveInterval=4 -o ServerAliveCountMax=2 -o TCPKeepAlive=yes"

if [ ! -z $target ]; then
    cmd="tmux attach-session -t '$target' || tmux new-session -s '$target'"
else
    cmd="tmux attach-session || tmux new-session"
fi

while true; do
    if $ssh "$host" $args -t "$cmd"; then
        break
    fi
    echo
    echo "Connection to \"$host\" dropped ..."
    while ! ping -c 1 -t 3 "$host" >/dev/null 2>&1; do
        sleep 10
    done
done