微調框動畫和回顯命令

Question

這是我的bash文件的一部分。我需要的輸出是：

[ - ]版權所有KatworX©技術。由阿瓊·辛格Kathait開發和調試由☆堆棧溢出社區☆

我想在顯示echo命令微調動畫繼續旋轉5秒。社區可以幫助嗎？

spinner() 
    { 
     local pid=$! 
     local delay=0.75 
     local spinstr='|/-\' 
     while [ "$(ps a | awk '{print $1}' | grep $pid)" ]; do 
      local temp=${spinstr#?} 
      printf " [%c] " "$spinstr" 
      local spinstr=$temp${spinstr%"$temp"} 
      sleep $delay 
      printf "\b\b\b\b\b\b" 
     done 
    } 

     sleep 5 & spinner | echo -e "\nCopyright of KatworX© Tech. Developed by Arjun Singh Kathait and Debugged by the ☆Stack Overflow Community☆" 

Answer 1

繼續評論。爲避免在每次迭代中調用ps,awk和grep，您需要將PID作爲參數傳遞給旋轉函數。 （並且你可以傳遞一個字符串來顯示，並且默認爲你的字符串）。我會做類似的東西：

#!/bin/bash 

## spinner takes the pid of the process as the first argument and 
# string to display as second argument (default provided) and spins 
# until the process completes. 
spinner() { 
    local PROC="$1" 
    local str="${2:-'Copyright of KatworX© Tech. Developed by Arjun Singh Kathait and Debugged by the ☆Stack Overflow Community☆'}" 
    local delay="0.1" 
    tput civis # hide cursor 
    printf "\033[1;34m" 
    while [ -d /proc/$PROC ]; do 
     printf '\033[s\033[u[/] %s\033[u' "$str"; sleep "$delay" 
     printf '\033[s\033[u[ — ] %s\033[u' "$str"; sleep "$delay" 
     printf '\033[s\033[u[ \ ] %s\033[u' "$str"; sleep "$delay" 
     printf '\033[s\033[u[ | ] %s\033[u' "$str"; sleep "$delay" 
    done 
    printf '\033[s\033[u%*s\033[u\033[0m' $((${#str}+6)) " " # return to normal 
    tput cnorm # restore cursor 
    return 0 
} 

## simple example with sleep 
sleep 5 & 

spinner $! 

（它顯示爲藍色 - 但你可以刪除第一printf去除顏色）