Converting a zsh prompt to bash
Dan Nelson
dnelson at allantgroup.com
Thu May 18 08:03:06 PDT 2006
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
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