Bash can also do shared history: export HISTCONTROL=ignoredups export HISTCONTRO...

Bash can also do shared history:

  export HISTCONTROL=ignoredups
  export HISTCONTROL=ignoreboth
  HISTSIZE=50000
  shopt -s histappend
  PROMPT_COMMAND='history -a'
  #history search inline
  #bind '"\e[A": history-search-backward'
  #bind '"\e[B": history-search-forward'