无法弄清楚如何在 bash 脚本中向 mailx 发送 ^D (EOT) 信号
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Can't figure out how to send ^D (EOT) signal to mailx in bash script
提问by GuavaKhan
I'm writing a bash script to send me an email automatically. Mailx requires an EOT or ^D signal to know the message body is over and it can send. I don't want to hit ^D on the keyboard when I run script which is what it does now.
我正在编写一个 bash 脚本来自动向我发送电子邮件。Mailx 需要 EOT 或 ^D 信号才能知道邮件正文已结束并且可以发送。我不想在运行脚本时敲击键盘上的 ^D，这就是它现在所做的。
Here is my code:
这是我的代码：
#! /bin/bash
SUBJ="Testing"
TO="[email protected]"
MSG="message.txt"
echo "I am emailing you" >> $MSG
echo "Time: `date` " >> $MSG
mail -s "$SUBJ" -q "$MSG" "$TO"
rm -f message.txt
回答by damienfrancois
If you do not need to add more text and just need to send the content of $MSG, you can replace
如果不需要添加更多的文字，只需要发送$MSG的内容，可以替换
mail -s "$SUBJ" -q "$MSG" "$TO"
with
和
mail -s "$SUBJ" "$TO" < "$MSG"
The EOTwill be implicit in the <construct. -qis indeed only used to start a message. The rest is supposed to come through stdin.
该EOT会在隐<结构。-q确实只用于开始消息。其余的应该通过标准输入。
回答by chepner
Pipe the output of a command group to mail.
将命令组的输出通过管道传输到mail.
#! /bin/bash
SUBJ="Testing"
TO="[email protected]"
MSG="message.txt"
{
echo "I am emailing you"
echo "Time: `date` "
} | mail -s "$SUBJ" -q "$MGS" "$TO"
rm -f message.txt
