tmux

bashrc.md

# redefine the tmux cmd to always prompt and re-attach to an old session,
# if no explicit session name given
tmux() {
  # if no arguments then check if there is any old sessions
  if [ $# -eq 0 ]; then
    t=$(which tmux)
    results=$($t list-sessions 2> /dev/null)
    if [[ -z $results ]]; then
      # start normal as the first session
      $t
    else
      # start by attaching to a past session
      echo $results | sed -e 's/\] /]\'$'\n/g'
      read -p "Which session to attach? "  input
      $t attach -t $input
    fi
  else
    # call normal with arguments that were passed
    $t $@
  fi
}