获取Bash数组中值的索引 [英] Get the index of a value in a Bash array

问题描述

我在bash中有一些东西，例如

I have something in bash like

myArray=('red' 'orange' 'green')

我想做类似的事情

echo ${myArray['green']}

在这种情况下将输出2.这可以实现吗?

Which in this case would output 2. Is this achievable?

推荐答案

这可以做到:

#!/bin/bash

my_array=(red orange green)
value='green'

for i in "${!my_array[@]}"; do
   if [[ "${my_array[$i]}" = "${value}" ]]; then
       echo "${i}";
   fi
done

很明显，如果将其转换为函数(例如get_index())，则可以使其通用化

Obviously, if you turn this into a function (e.g. get_index() ) - you can make it generic

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