您可以使用一个行定界符

 猫＆LT;＆LT;＆LT; 这是从标准输入来了
 

以上是相同的

 猫＆LT;＆LT; EOF
这是从标准输入来
EOF
 

，也可以从命令输出重定向，像

 差异≤（LS /箱）≤（LS在/ usr / bin中）
 

也可以读作

 而读线
做
   回声= $行=
完成＆LT; SOME_FILE
 

或只是

 回声东西|读取参数
 

Is there a way to effectively do this in bash:

/my/bash/script < echo 'This string will be sent to stdin.'

I'm aware that I could pipe the output from the echo such as this:

echo 'This string will be piped to stdin.' | /my/bash/script

You can use one-line heredoc

cat <<< "This is coming from the stdin"

the above is the same as

cat <<EOF
This is coming from the stdin
EOF

or you can redirect output from a command, like

diff <(ls /bin) <(ls /usr/bin)

or you can read as

while read line
do
   echo =$line=
done < some_file

or simply

echo something | read param