Question

我有下面的代码，它不会将grep输出发送到电子邮件，但它会显示输出命令行。不确定我做错了什么

sudo tail -f  /path/to/file | while read line ; do 
    egrep 'successfully started \[[0-9] out of [0-9]\] components|successfully started \[[0-9] out of [0-9]\] components' 
    if [ $? -eq 0 ]; then
        (echo " RESTARTS"; echo; echo $line) | mail -s "RESTART" email@email.com
    else
        echo " FAILS"
    fi
done

[UPDATE]

还有另一种方法，我试图这样做，但它不会发送电子邮件..我只是确保我可以摆脱循环而不是永远，所以这就是为什么我把尾巴放进去

while read line; do

    echo "$line" | sudo tail -f  /opt/bmc/ao/cdp/tomcat/logs/grid.log

    if [ $(echo "$line" | grep -E 'successfully started \[[0-9] out of [0-9]\] components|successfully started \[[0-9] out of [0-9]\] components' | wc -l) -ne 0 ]; then
        (echo "CDP RESTARTS"; echo; echo "$line") | mail -s "BAOCDP AUTO RESTART" noreply@google.com

        break
    fi

done

Answer 1

grep无法猜测您希望它对$line变量的内容起作用，您必须将其提供给命令：

egrep 'successfully started \[[0-9] out of [0-9]\] components|successfully started \[[0-9] out of [0-9]\] components' <<< "$line"

或

echo "$line" | egrep 'successfully started \[[0-9] out of [0-9]\] components|successfully started \[[0-9] out of [0-9]\] components'

关于你的编辑，我会使用以下代码：

sudo tail -f  /opt/bmc/ao/cdp/tomcat/logs/grid.log | while read line; do

    if $(echo "$line" | grep -E 'successfully started \[[0-9] out of [0-9]\] components|successfully started \[[0-9] out of [0-9]\] components'); then
        (echo "CDP RESTARTS"; echo; echo "$line") | mail -s "BAOCDP AUTO RESTART" noreply@google.com

        break
    fi

done

除了放回它所属的tail之外，我还简化了if的条件：grep当且仅当它匹配时才会返回1，因此可以使用它作为条件本身。

运行bash命令后没有收到grep输出的电子邮件

1 个答案: