resore PROMPT_COMMAND and add zsh suggestion

Author: gilesknap

.devcontainer/features/bash-config/config/bash-config-rc

@@ -2,15 +2,13 @@
 
 # default opinioned bash configuration
 
-# set the prompt
-export PS1="\[\033[1;34m\]\W \[\033[0m\]# "
-
 # enable enternal shared history
 export HISTCONTROL=ignoreboth:erasedups
 export HISTSIZE=-1
 export HISTFILESIZE=-1
 export SAVEHIST=-1
 export HISTFILE=$CONFIG_FOLDER/.bash_eternal_history
+export PROMPT_COMMAND="history -a; $PROMPT_COMMAND"
 
 # bash theme - partly inspired by https://github.com/ohmyzsh/ohmyzsh/blob/master/themes/robbyrussell.zsh-theme
 # from https://github.com/devcontainers/features/blob/main/src/common-utils/scripts/bash_theme_snippet.sh

.devcontainer/features/bash-config/config/bashrc

@@ -13,9 +13,9 @@ if [ ! -f /one-time ]; then
 
     # add your personal one time only (container creation) commands here
     # e.g. to add zsh in:-
-    # apt-get update; apt-get install -y zsh
-    # echo y | sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)")
-    # sed -i 's/robbyrussel/dst/' /root/.zshrc
+    #    apt-get update; apt-get install -y zsh
+    #    echo y | sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)")
+    #    sed -i 's/^ZSH_THEME.*/ZSH_THEME\=dst/' ~/.zshrc
 
     touch /one-time
 fi