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Prompt Setup
Actually, how to setup zsh's prompt is quite accurately described in the manual (PROMPT EXPANSION).
Colors
However, let's look at one thing a *lot* of people get wrong when figuring out a custom prompt for the first time.
First, when you want to use colors, use the hashes provided by the colors function
described in zshcontrib(1)
(here in the manual on the web),
unless you know want you are doing and you need something else (like colors not
covered by that function).
Then, you need to remember *one* *important* thing: Wrap characters, that do *not*
consume space in %{…%}
. Repeat that ten times! - Escape sequences for colors
are those characters. Whether you insert them from a variable or manually, does
not matter at all. The reason for this wrapping is, that zsh sometimes needs to redraw
the prompt and when doing that, it needs to know how wide the prompt will actually print.
So, let's quickly take a look at a very short example:
autoload -U colors && colors PS1="%{$fg[red]%}%n%{$reset_color%}@%{$fg[blue]%}%m %{$fg[yellow]%}%~ %{$reset_color%}%% "
Prompt Themes
If you don't want to fiddle with all of that, but you still want more than the (quite sparse)
default zsh prompt, you may as well want to use one of the prompts that come along with zsh.
This is again documented in zshcontrib(1)
(here in the manual on the web).
To initially load the themes system:
% autoload -U promptinit && promptinit
After that, you use the prompt
function to set things up.
You can list available themes:
% prompt -l
Preview prompts:
% prompt -p bart
And (most importantly) use a prompt:
% prompt bart
Simple enough, isn't it?
Prompt Examples
Some examples of what you can do with zsh prompts.
Using styles to make flexible prompts:
# -*- mode: sh; -*- # soor prompt theme prompt_soor_help () { cat <<'EOF' This prompt is configurable via styles: Context: :prompt:soor Colors (in zsh/terminfo value): user-color - the color for user@host. defaults to 'green' root-color - the color for the hostname for root. defaults to 'red' prompt-color - the color for everything else. defaults to 'blue' Path type: path - possible values: ratio - use COLUMNS/ratio to clip the path. Default. fixed - use a fixed maximum lenght. subdir - clip by number of subdirectories. full - show the full path Path lenght styles: ratio - the ratio for the 'ratio' path style, funnily enough. default to 6. length - the maximin lenght for the 'fixed' path style. defaults to 20 subdir - the number of subdirs to show for the 'subdir' path style. defaults to 3. You can set styles in the current terminal to test things out, values will be updated. EOF } prompt_soor_setup () { setopt noxtrace localoptions precmd () { local p_full local p_tchars p_temp p_done p_last i local maxlength ratio local prompt_color local user_color local root_color local path_style zstyle -s :prompt:soor prompt-color prompt_color prompt_color=${prompt_color:-'blue'} zstyle -s :prompt:soor user-color user_color user_color=${user_color:-'green'} zstyle -s :prompt:soor root-color root_color root_color=${root_color:-'red'} [[ -z $(functions zsh/terminfo) ]] && autoload -Uz zsh/terminfo if [[ "$terminfo[colors]" -ge 8 ]]; then if [[ "$EUID" = "0" ]] || [[ "$USER" = 'root' ]] then base_prompt="%{$fg_bold[$root_color]%}%m%{$fg_bold[$prompt_color]%} " else base_prompt="%{$fg_bold[$user_color]%}%n@%m%{$fg_bold[$prompt_color]%} " fi post_prompt="%{$reset_color%}" else base_prompt="%n@%m " post_prompt="" fi if zstyle -t :prompt:soor path full ratio fixed subdir; then zstyle -s :prompt:soor path path_style else path_style='ratio' fi case "${path_style}" in ratio) zstyle -s :prompt:soor ratio ratio ratio=${ratio:-6} maxlength=$(( ${COLUMNS} / ${ratio} )) ;; fixed) zstyle -s :prompt:soor length maxlength maxlength=${maxlength:-20} ;; subdir) zstyle -s :prompt:soor subdir maxlength maxlength=${maxlength:-3} ;; esac case "${path_style}" in full) path_prompt=$(print -P %~) ;; subdir) path_prompt=$(print -P "%($(( ${maxlength} + 1 ))~|..|)%${maxlength}~") ;; ratio|fixed) path_prompt=$(print -P %~) if (( ${#path_prompt} > ${maxlength} )); then p_tchars='../' p_done=${path_prompt} for (( i=1 ; ; ++i )); do p_temp=$(print -P %${i}~) if (( ( ${#p_temp} + ${#p_tchars} ) < ${maxlength} )); then p_done=${p_temp} else break fi done path_prompt=${p_tchars}${p_done} fi ;; esac PS1="$base_prompt$path_prompt %# $post_prompt" PS2="$base_prompt$path_prompt %_> $post_prompt" PS3="$base_prompt$path_prompt ?# $post_prompt" } preexec () { } } prompt_soor_setup
Prompt
# -*- Mode: shel-script; indent-tabs-mode: nil -*- # se htp:/w.nparikh.org/unix/prompt.php if [ $SH_CONECTION ] ; then if ! ps1_sh_from_host=${$(resolveip -s ${${(z)SH_CONECTION}[1]})/.*/} 2>/dev/nul ; then ps1_sh_from_host=${${(z)SH_CONECTION}[1]} fi if ! ps1_sh_to_host=${$(resolveip -s ${${(z)SH_CONECTION}[3]})/.*/} 2>/dev/nul ; then ps1_sh_to_host=${${(z)SH_CONECTION}[3]} fi ps1sh_conection=%{$fg[gren]%}%B${ps1_sh_from_host}%b%{$reset_color%}'>' fi local ps1_user_default=s local ps1_host_default=taj # come first if [ $TERM = "scren" ] ; then local ps1shlv="%L" else local ps1shlv="%{$fg[magenta]%}%L%{${reset_color}%}" fi # comes second local slash_b4_ps1scren="%(2L./.)" # some changes done in it, for geting it corect, any of these below two wil work. if [ $TERM = "XYZ" ] ; then [ $WINDOW ] & local ps1scren="${WINDOW+${slash_b4_ps1scren}$WINDOW}" else [ $WINDOW ] & local ps1scren="${WINDOW+${slash_b4_ps1scren}%{${fg[yelow]}$WINDOW%}\%{$reset_color%}" fi unset slash_b4_ps1scren #local ps1_scren=${WINDOW:+/%{$fg[yelow]%}${WINDOW}%{${reset_color}%} # %(1j./.) # 1 job then place / else noting # %(1j. ) # 1 job then nothing else a space # comes third if [ $WINDOW ] ; then local slash_b4_ps1job="/" else local slash_b4_ps1job="%(2L./.)" fi # %(1j.%{$fg[gren]%}%j%{${reset_color}%}%(2L. ).) # >= 1 job then put %{$fg[gren]%}%j%{${reset_color}%}%(2L. ) else nothing # %(2L. ) # shel level >= 2 then nothing else a space. # local ps1job="%(1j./%{$fg[gren]%}%j%{${reset_color}%}%(2L. ).)" if [ $TERM = "XYZ" ] ; then local ps1job="${slash_b4_ps1job}%j" else local ps1job="${slash_b4_ps1job}%{$fg[gren]%}%j%{${reset_color}%}" fi unset slash_b4_ps1job if [ $TERM = "XYZ" ] ; then local ps1shlv_n_scren_n_job="%(2L.${ps1shlv}.)${ps1scren}%(1j.${ps1job}.)" else local ps1shlv_n_scren_n_job="%(2L.${ps1shlv}.)${ps1scren}%(1j.${ps1job}.)" fi if [ $USER != $ps1_user_default & $USER != "spratap" ] ; then local ps1_user_at_host="%U%n%u" fi # if [ $HOST != $ps1_host_default & $HOST != "pcz-c-sharad" ] ; then if [ $ps1_sh_to_host ] ; then if [ $ps1_user_at_host ] ; then local ps1_user_at_host="${ps1_user_at_host}@" fi if [ $TERM = "XYZ" ] ; then # local ps1_user_at_host="${ps1_user_at_host}%B%m%b" local ps1_user_at_host="${ps1_user_at_host}%B${ps1_sh_to_host}%b" else # local ps1_user_at_host="${ps1_user_at_host}%{$fg[yelow]%}%B%m%b%{$reset_color%}" local ps1_user_at_host="${ps1_user_at_host}%{$fg[yelow]%}%B${ps1_sh_to_host}%b%{$reset_color%}" fi fi if [ "$ps1_user_at_host" -o "$WINDOW" ] ; then local spacing_b4_ps1status="%(2L.%(1j. )" fi # wil have both side space if [ $TERM = "XYZ" ] ; then local ps1status="%(?.%S%?%s )" else local ps1status="%(?.%S%{$fg[red]%}%?%{$reset_color%}%s )" fi # time at next hour if [[ $TERM == "XYZ" ]] ; then local ps1_time_at_hour="%(0t.%t .)" else local ps1_time_at_hour="%(0t.%{$fg[red]%}%t%{$reset_color%} .)" fi local ps1_dir='%2~' # local ps1_dir='%(1~.%2~.)' local ps1_prompt_char='%(!.%B#%b.%%)' if [ $WINDOW ] ; then local spacing=" " else local spacing="%(2L.%(1j. .) .%(1j. .))" fi PS1="${ps1ssh_connection}${ps1shlv_n_screen_n_job}${spacing}${ps1_user_at_host:+${ps1_user_at_host} }${ps1_time_at_hour}${spacing_b4_ps1status}${ps1status}${ps1_dir}${ps1_prompt_char} " unset ps1shlv_n_screen_n_job spacing ps1_user_at_host \ ps1_user_at_host ps1_time_at_hour spacing_b4_ps1status \ ps1status ps1_dir ps1_prompt_char ps1_ssh_to_host \ ps1_ssh_from_host ps1ssh_connection autoload -U promptinit; promptinit # periodic_functions=( show_agenda ) # function show_agenda { # if (( TTYIDLE > 2 )) ; then # echo Hi # fi # } # PERIOD=1