fish-shell/share/tools/web_config/sample_prompts/simple.fish

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# name: Simple
function fish_prompt
# This is a simple prompt. It looks like
# alfa@nobby /path/to/dir $
# with the path shortened and colored
# and a "#" instead of a "$" when run as root.
set -l symbol ' $ '
set -l color $fish_color_cwd
if fish_is_root_user
set symbol ' # '
set -q fish_color_cwd_root
and set color $fish_color_cwd_root
end
echo -n $USER@$hostname
set_color $color
echo -n (prompt_pwd)
set_color normal
echo -n $symbol
end