bash 当stdin来自`cat` bash时读取完整的stdin直到EOF
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Read full stdin until EOF when stdin comes from `cat` bash
提问by edi9999
I'm trying to read full stdin into a variable :
我正在尝试将完整的标准输入读入一个变量：
script.sh
脚本文件
#/bin/bash
input=""
while read line
do
echo "$line"
input="$input""\n""$line"
done < /dev/stdin
echo "$input" > /tmp/test
When I run ls | ./script.shor mostly any other commands, it works fine.
当我运行ls | ./script.sh或大多数其他命令时，它工作正常。
However It doesn't work when I run cat | ./script.sh, enter my message, and then hit Ctrl-C to exit cat.
但是，当我运行时它不起作用cat | ./script.sh，输入我的消息，然后按 Ctrl-C 退出 cat。
Any ideas ?
有任何想法吗 ？
回答by Roberto Reale
I would stick to the one-liner
我会坚持单线
input=$(cat)
Of course, Ctrl-Dshould be used to signal end-of-file.
当然，Ctrl-D应该用来表示文件结束。
