暂停shell脚本，直到preSS输入while循环 [英] Pause Shell script until Press Enter in while loop

问题描述

当我读文件

示例脚本

while read file
do
temp = $(echo $file)
read -p "Press Enter to continue"
echo $temp
done < test.txt

我要暂停的脚本，直到我preSS ENTER

I want to pause the script until I press ENTER

推荐答案

读从默认的标准输入，它被重定向到文件读取，因此它得到线从该文件。你可以回重定向到终端：

read reads from standard input by default, which is redirected to the file, so it's getting the line from the file. You can redirect back to the terminal:

read -p "Press Enter to continue" </dev/tty

另一种选择是使用不同的FD的文件重定向

Another option would be to use a different FD for the file redirection

while read -u 3
do
    ...
done 3< test.txt

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