LinuxQuestions.org - What shell are you using?

This is a very informative prompt for zsh, also it looks quite nice :) :
Code:
function precmd {



    local TERMWIDTH

    (( TERMWIDTH = ${COLUMNS} - 1 ))





    ###

    # Truncate the path if it's too long.



    PR_FILLBAR=""

    PR_PWDLEN=""



    local promptsize=${#${(%):---(%n@%m:%l)---()--}}

    local pwdsize=${#${(%):-%~}}



    if [[ "$promptsize + $pwdsize" -gt $TERMWIDTH ]]; then

            ((PR_PWDLEN=$TERMWIDTH - $promptsize))

    else

        PR_FILLBAR="\${(l.(($TERMWIDTH - ($promptsize + $pwdsize)))..${PR_HBAR}.)}"

    fi





    ###

    # Get APM info.



    if which ibam > /dev/null; then

        PR_APM_RESULT=`ibam --percentbattery`

    elif which apm > /dev/null; then

        PR_APM_RESULT=`apm`

    fi

}





setopt extended_glob

preexec () {

    if [[ "$TERM" == "screen" ]]; then

        local CMD=${1[(wr)^(*=*|sudo|-*)]}

        echo -n "\ek$CMD\e\\"

    fi

}





setprompt () {

    ###

    # Need this so the prompt will work.



    setopt prompt_subst





    ###

    # See if we can use colors.



    autoload colors zsh/terminfo

    if [[ "$terminfo[colors]" -ge 8 ]]; then

        colors

    fi

    for color in RED GREEN YELLOW BLUE MAGENTA CYAN WHITE; do

        eval PR_$color='%{$terminfo[bold]$fg[${(L)color}]%}'

        eval PR_LIGHT_$color='%{$fg[${(L)color}]%}'

        (( count = $count + 1 ))

    done

    PR_NO_COLOUR="%{$terminfo[sgr0]%}"





    ###

    # See if we can use extended characters to look nicer.



    typeset -A altchar

    set -A altchar ${(s..)terminfo[acsc]}

    PR_SET_CHARSET="%{$terminfo[enacs]%}"

    PR_SHIFT_IN="%{$terminfo[smacs]%}"

    PR_SHIFT_OUT="%{$terminfo[rmacs]%}"

    PR_HBAR=${altchar[q]:--}

    PR_ULCORNER=${altchar[l]:--}

    PR_LLCORNER=${altchar[m]:--}

    PR_LRCORNER=${altchar[j]:--}

    PR_URCORNER=${altchar[k]:--}



    

    ###

    # Decide if we need to set titlebar text.



    case $TERM in

        xterm*)

            PR_TITLEBAR=$'%{\e]0;%(!.-=*[ROOT]*=- | .)%n@%m:%~ | ${COLUMNS}x${LINES} | %y\a%}'

            ;;

        screen)

            PR_TITLEBAR=$'%{\e_screen \005 (\005t) | %(!.-=[ROOT]=- | .)%n@%m:%~ | ${COLUMNS}x${LINES} | %y\e\\%}'

            ;;

        *)

            PR_TITLEBAR=''

            ;;

    esac



    

    ###

    # Decide whether to set a screen title

    if [[ "$TERM" == "screen" ]]; then

        PR_STITLE=$'%{\ekzsh\e\\%}'

    else

        PR_STITLE=''

    fi





    ###

    # APM detection



    if which ibam > /dev/null; then

        PR_APM='$PR_RED${${PR_APM_RESULT[(f)1]}[(w)-2]}%%(${${PR_APM_RESULT[(f)3]}[(w)-1]})$PR_LIGHT_BLUE:'

    elif which apm > /dev/null; then

        PR_APM='$PR_RED${PR_APM_RESULT[(w)5,(w)6]/\% /%%}$PR_LIGHT_BLUE:'

    else

        PR_APM=''

    fi

    



    ###

    # Finally, the prompt.



    PROMPT='$PR_SET_CHARSET$PR_STITLE${(e)PR_TITLEBAR}\

$PR_CYAN$PR_SHIFT_IN$PR_ULCORNER$PR_BLUE$PR_HBAR$PR_SHIFT_OUT(\

$PR_GREEN%(!.%SROOT%s.%n)$PR_GREEN@%m:%l\

$PR_BLUE)$PR_SHIFT_IN$PR_HBAR$PR_CYAN$PR_HBAR${(e)PR_FILLBAR}$PR_BLUE$PR_HBAR$PR_SHIFT_OUT(\

$PR_MAGENTA%$PR_PWDLEN<...<%~%<<\

$PR_BLUE)$PR_SHIFT_IN$PR_HBAR$PR_CYAN$PR_URCORNER$PR_SHIFT_OUT\



$PR_CYAN$PR_SHIFT_IN$PR_LLCORNER$PR_BLUE$PR_HBAR$PR_SHIFT_OUT(\

%(?..$PR_LIGHT_RED%?$PR_BLUE:)\

${(e)PR_APM}$PR_YELLOW%D{%H:%M}\

$PR_LIGHT_BLUE:%(!.$PR_RED.$PR_WHITE)%#$PR_BLUE)$PR_SHIFT_IN$PR_HBAR$PR_SHIFT_OUT\

$PR_CYAN$PR_SHIFT_IN$PR_HBAR$PR_SHIFT_OUT\

$PR_NO_COLOUR '



    RPROMPT=' $PR_CYAN$PR_SHIFT_IN$PR_HBAR$PR_BLUE$PR_HBAR$PR_SHIFT_OUT\

($PR_YELLOW%D{%a,%b%d}$PR_BLUE)$PR_SHIFT_IN$PR_HBAR$PR_CYAN$PR_LRCORNER$PR_SHIFT_OUT$PR_NO_COLOUR'



    PS2='$PR_CYAN$PR_SHIFT_IN$PR_HBAR$PR_SHIFT_OUT\

$PR_BLUE$PR_SHIFT_IN$PR_HBAR$PR_SHIFT_OUT(\

$PR_LIGHT_GREEN%_$PR_BLUE)$PR_SHIFT_IN$PR_HBAR$PR_SHIFT_OUT\

$PR_CYAN$PR_SHIFT_IN$PR_HBAR$PR_SHIFT_OUT$PR_NO_COLOUR '

}



setprompt
Just copy it to your ~/.zshrc file and that's it! And sorry for such a long post. :)