remux-hop

#!/bin/bash
#
# AutoSSH to host and create or connect to tmux session
# Multi-hop version. Separate hops with :
#
# Author: Oystein Steimler <[email protected]>

HLIST=$1;

IFS=':' read -a HOPS <<< "$HLIST"

AUTOSSHPRM="-M0 -o ServerAliveInterval=10 -o ServerAliveCountMax=2 -o BatchMode=yes"
CMD="if tmux ls | grep ^$2; then tmux att -t $2; else tmux new -s $2;fi";
for ((i=${#HOPS[@]}-1; i>=1; i--))
do
  PCMD=$(printf %q "$CMD");
  CMD="if [ \`which autossh\` ] ; then echo AutoSSH; autossh $AUTOSSHPRM -t ${HOPS[$i]} $PCMD; else echo SSH; ssh -t ${HOPS[$i]} $PCMD; fi ";
done
#echo $CMD;

if [ `which autossh` ];
then
  echo AutoSSH;
  autossh $AUTOSSHPRM -t ${HOPS[$i]} $CMD;
else
  echo SSH;
  ssh -t ${HOPS[0]} $CMD;
fi;