Converting a zsh prompt to bash

[Kyrre Nygard]

At 22:48 18.05.2006, Dan Nelson wrote:
>In the last episode (May 18), Kyrre Nygard said:
> > At 17:02 18.05.2006, Dan Nelson wrote:
> > >In the last episode (May 18), Kyrre Nygard said:
> > >> 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>"
> > >>
> > >> Hey Dan!
> > >>
> > >> I can't find a list of what colors are available. Besides I doubt
> > >> that mine are accounted for.
> > >
> > >There are only so many ways to combine 8 colors :)  From the manpage:
> > >
> > >  colors This function initializes  several  associative  arrays  to  map
> > >         color names to (and from) the ANSI standard eight-color terminal
> > >         codes.  These are used by the prompt theme system  (see  above).
> > >         You seldom should need to run colors more than once.
> > >
> > >         The  eight  base  colors  are:  black, red, green, yellow, blue,
> > >         magenta, cyan, and white.  Each of these  has  codes  for  fore-
> > >         ground  and  background.   In addition there are eight intensity
> > >         attributes: bold, faint, standout,  underline,  blink,  reverse,
> > >         and  conceal.   Finally,  there  are  six  codes  used to negate
> > >         attributes: none (reset all attributes to the defaults),  normal
> > >         (neither  bold  nor faint), no-standout, no-underline, no-blink,
> > >         and no-reverse.
> > >
> > >> 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%} '
> > >
> > >How about something like:
> > >
> > >autoload -U colors
> > >colors
> > >
> > >if [[ $USER == root ]] ; then
> > > c1="%{$fg_no_bold[cyan]%}" # base color1
> > > c2="%{$fg_bold[cyan]%}"    # base color2
> > > c3="%{$fg_bold[black]%}"   # punctuation
> > >else
> > > c1="%{$fg_no_bold[red]%}" # base color1
> > > c2="%{$fg_bold[red]%}"    # base color2
> > > c3="%{$fg_bold[black]%}"  # punctuation
> > >fi
> > >
> > >PROMPT="$c2($c1%n$c3@$c1%m$c2)($c1%D{%H:%M}$c3+$c1%D{%d/%m}$c2)"$'\n'
> > >PROMPT+="$c2($c1%#$c3:$c1%~$c2) %{$reset_color%}"
> > >
> > >--
> > >        Dan Nelson
> > >        dnelson at allantgroup.com
> >
> > Oh man! That is absolutely gorgeous!!!
> > Thank you so much :)))
> >
> > My /etc/zshrc is now worth $10.000 (up from $7.000)
> >
> > Don't sell it on eBay you all: http://paste.husk.org/5717
> >
> > Just out of curiosity Dan, how does your prompt look like?
>
>Mine's strictly functional.  User, host, path in left prompt; error
>status in right prompt.  Within screen, I add the window number to the
>left prompt and the date&time to the right prompt so I know how long
>I've left a window idle.
>
>if [[ $+WINDOW = 1 && $TERM = screen* ]] ; then
>   PROMPT="(%n@%m.$WINDOW) %B%/>%(#/#/)%b "
>   RPROMPT="%(?.. %B%?%b)%t %D{%m/%d}"
>else
>   PROMPT="(%n@%m) %B%/>%(#/#/)%b "
>   RPROMPT="%(?..%?)"
>fi
>
>--
>         Dan Nelson
>         dnelson at allantgroup.com

Hey Dan!

Your prompt is truly wonderful.
It inspired me to grow up, as far as my shell is concerned.

Based on your design, I came up with this:

if [[ `whoami` = root ]] then

         a1="%{$fg_bold[red]%}"
         a2="%{$fg_no_bold[red]%}"

else

         a1="%{$fg_bold[cyan]%}"
         a2="%{$fg_no_bold[cyan]%}"

fi

if [[ $+WINDOW = 1 && $TERM = screen* ]] then

         PROMPT="$a1(%n@%m) [$WINDOW] $a2%~ >%{$reset_color%} "
         RPROMPT="%D{%H:%M} %D{%d/%m}"

fi

PROMPT="$a1(%n@%m) $a2%~ >%{$reset_color%} "
RPROMPT="%D{%H:%M} %D{%d/%m}"

And I think I'm keeping it like that.

Unless you have any suggestions on how to simply its setup?
It takes up a lot of lines, maybe it could shrink a little.

I hope you don't consider me stealing your design.
If that's the case I'll revert back to my old one.

It's kinda nice though, isn't it? :)

All the best,
Kyrre