我有这个：
while read -r line; do echo "hello $line"; read -p "Press any key" -n 1; done < file
hello This is line 1
hello his is line 2
hello his is line 3
hello his is line 4
hello his is line 5
hello his is line 6
hello his is line 7
为什么我看不到提示“按任意键”？
解决方法:
引用man bash：
-p prompt
display prompt on standard error, without a trailing new
line, before attempting to read any input. The prompt is
displayed only if input is coming from a terminal.
因此,因为您从文件中读取行而不是从终端提示中读取未显示的行.
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