Question

我正试图让我的系统在系统启动时向我发送电子邮件。使用以下命令按预期工作：

echo -e "TO:my-email-address@gmail.com \nSUBJECT:System Booted \n\nBeware I live! \n"$1 | sendmail -t -vs

但是如果我把它像这样添加到rc.local：

#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

#----- Print the IP address
#_IP=$(hostname -I) || true
#if [ "$_IP" ]; then
#  printf "My IP address is %s\n" "$_IP"
#fi

#----- Notify on boot
/home/alex/notify/boot.sh "`date`"

exit 0

我明白了：

sendmail: No recipients specified although -t option used

为什么会失败？

Answer 1

使用bash / zsh vs / bin / sh

时出现问题

Bash和Zsh内置了echo选项-e，但是系统/bin/echo - 没有。比较：

/bin/echo -e "TO:my-email-address@gmail.com \nSUBJECT:System Booted \n\nBeware I live! \n"
echo -e "TO:my-email-address@gmail.com \nSUBJECT:System Booted \n\nBeware I live! \n"

您可以使用以下脚本：

#!/bin/sh
sendmail -t -vs <<EOF
TO:my-email-address@gmail.com
SUBJECT:System Booted

Beware I live!
$1
EOF

管道回送到rc.local中的sendmail失败

1 个答案: