将 awk 输出保存到变量 [英] Saving awk output to variable

问题描述

谁能帮我解决这个问题?

Can anyone help me out with this problem?

我正在尝试将 awk 输出保存到变量中.

I'm trying to save the awk output into a variable.

variable = `ps -ef | grep "port 10 -" | grep -v "grep port 10 -"| awk '{printf "%s", $12}'`
printf "$variable"

$12 对应于在该进程上运行的参数.

$12 corresponds to a parameter running on that process.

谢谢！

推荐答案

#!/bin/bash

variable=`ps -ef | grep "port 10 -" | grep -v "grep port 10 -" | awk '{printf $12}'`
echo $variable

注意等号后面没有空格.

Notice that there's no space after the equal sign.

你也可以使用$()，它允许嵌套并且是可读的.

You can also use $() which allows nesting and is readable.

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