Converting a zsh prompt to bash

[Kyrre Nygard]

At 17:04 17.05.2006, Dan Nelson wrote:
>In the last episode (May 17), Kyrre Nygard said:
> > Do you think this would work?
> >
> > I tried applying your principles, as well as some information design:
> >
> > local a1="01;36m"
> > local a2="22;36m"
> > local a3="01;30m"
> >
> > local b1="01;31m"
> > local b2="22;31m"
> > local b3="01;30m"
> >
> > PROMPT=$'%{$a1}(%{$a2}%n%{$a3}@%{$a2}%m%{$a1})'
> > PROMPT+=$'%{$a1}('{$a2}%D{%H:%M}%{$a3}+%{$a2}%D{%d/%m}%{$a1})%{$a3}\n'
> > PROMPT+=$'%{$a1}(%{$a2}%#%{$a3}:%{$a2}%~%{$a1})'
> >
> > if [[ `whoami` = root ]] then
> > PROMPT=$'%{$b1}(%{$b2}%n%{$b3}@%{$b2}%m%{$b1})'
> > PROMPT+=$'%{$b1}(%{$b2}%D{%H:%M}%{$b3}+%{$b2}%D{%d/%m}%{$b1})%{$b3}\n'
> > PROMPT+=$'%{$b1}(%{$b2}%#%{$b3}:%{$b2}%~%{$b1})'
> > fi
>
>Note that zsh provides symbolic variables for color setting:
>
>  autoload -U colors
>  colors
>  echo "$fg[blue]$bg[red]blue on red!"
>
>so you don't have to memorize the numbers.  See the zshcontrib manpage,
>"OTHER FUNCTIONS" section.
>
>If the only difference between your root prompt is color, you can also
>just set a1,a2,a3 to different values within your if block, then set
>PROMPT outside of it.
>
>  if [[ $USER == root ]] ; then
>   a1="%{$fg[cyan]$bg[black]}"
>  else
>   a1="%{$fg[red]}$bg[black]}"
>  fi
>  PROMPT="$a1>"
>
>
>--
>         Dan Nelson
>         dnelson at allantgroup.com

Hey Dan!

I can't find a list of what colors are available. Besides I doubt 
that mine are accounted for.

I'd be very grateful if you could at least try this prompt out so you 
know my request:

PROMPT=$'%{\e[01;36m%}(%{\e[22;36m%}%n%{\e[01;30m%}@'
PROMPT+=$'%{\e[22;36m%}%m%{\e[01;36m%})%{\e[01;36m%}%{\e[01;36m%}('
PROMPT+=$'%{\e[22;36m%}%D{%H:%M}%{\e[01;30m%}+%{\e[22;36m%}%D{%d/%m}'
PROMPT+=$'%{\e[01;36m%})%{\e[01;30m\e[00m%}\n%{\e[01;36m%}('
PROMPT+=$'%{\e[22;36m%}%#%{\e[01;30m%}:%{\e[22;36m%}%~%{\e[01;36m%})'
PROMPT+=$'%{\e[01;30m\e[00m%} '

if [[ `whoami` = root ]] then

         PROMPT=$'%{\e[01;31m%}(%{\e[22;31m%}%n%{\e[01;30m%}@'
         PROMPT+=$'%{\e[22;31m%}%m%{\e[01;31m%})%{\e[01;31m%}%{\e[01;31m%}('
         PROMPT+=$'%{\e[22;31m%}%D{%H:%M}%{\e[01;30m%}+%{\e[22;31m%}%D{%d/%m}'
         PROMPT+=$'%{\e[01;31m%})%{\e[01;30m\e[00m%}\n%{\e[01;31m%}('
         PROMPT+=$'%{\e[22;31m%}%#%{\e[01;30m%}:%{\e[22;31m%}%~%{\e[01;31m%})'
         PROMPT+=$'%{\e[01;30m\e[00m%} '

fi

Anyway I just went ahead and tested this:

local a1="01;36m"
local a2="22;36m"
local a3="01;30m"
local b1="01;31m"
local b2="22;31m"
local b3="01;30m"

PROMPT=$'%{$a1}(%{$a2}%n%{$a3}@%{$a2}%m%{$a1})'
PROMPT+=$'%{$a1}('{$a2}%D{%H:%M}%{$a3}+%{$a2}%D{%d/%m}%{$a1})%{$a3}\n'
PROMPT+=$'%{$a1}(%{$a2}%#%{$a3}:%{$a2}%~%{$a1})'

if [[ `whoami` = root ]] then

         PROMPT=$'%{$b1}(%{$b2}%n%{$b3}@%{$b2}%m%{$b1})'
         PROMPT+=$'%{$b1}%{$b1}(%{$b2}%D{%H:%M}%{$b3}+%{$b2}%D{%d/%m}%{$b1})%{$b3}\n'
         PROMPT+=$'%{$b1}(%{$b2}%#%{$b3}:%{$b2}%~%{$b1})'

fi

But I got:

/etc/zshrc:32: parse error near `)'
$a1}($a2}root$a3}@$a2}ninja$a1})

The:

>  if [[ $USER == root ]] ; then
>   a1="%{$fg[cyan]$bg[black]}"
>  else
>   a1="%{$fg[red]}$bg[black]}"
>  fi
>  PROMPT="$a1>"

Technique sounds very interesting, but it's getting a bit too 
advanced for my part.

Take care man, and thanks again!

All the best,
Kyrre