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?kawaii=true

目次

$HOME/.bashrc に以下を追加する．

# ~/.bashrc

# 元々の.bashrcの内容がここら辺にあるとして

function custom_ps1() {
    if [ $? -eq 0 ]; then
        local face="\e[36m(*'_')\e[m"
    else
        local face="\e[33m(*;_;)\e[m"
    fi

    PS1='\[\033[32m\]'          # change to green
    PS1+='\u'                   # current user name
    PS1+='\[\033[0m\]'          # reset color
    PS1+=':'
    PS1+='\[\033[36m\]'         # change color to cyan
    PS1+='\w'                   # current working directory
    PS1+='\[\033[33m\]'         # change to brownish yellow
    PS1+='$(__git_ps1 "[%s]")'  # bash function
    PS1+='\[\033[0m\]'          # reset color
    PS1+="${face}\$ "           # cute emoji
    export PS1
}
PROMPT_COMMAND=custom_ps1

実行例

ubuntu:~/hoge/piyo[main](*'_')$ errorCMD
errorCMD: command not found
ubuntu:~/hoge/piyo[main](*;_;)$ echo "success"
success
ubuntu:~/hoge/piyo[main](*'_')$ cd $HOME
ubuntu:~(*'_')$

コマンドの実行結果に応じて顔が変わる．いいね :+1: