bash与冒号的关联数组键字符串给出错误 [英] bash associative array key string with colon is giving error

问题描述

我正在创建源和目标MAC地址的关联数组.

I am creating an associative array of source and destination MAC addresses.

$ declare -a SrcDstMap
$ SrcDstMap["9c:4e:20:73:e2:72"]="ff:ff:ff:ff:ff:ff"
-bash: 9c: value too great for base (error token is "9c")
$ SrcDstMap["fc:4e:20:73:e2:72"]="ff:ff:ff:ff:ff:ff"
-bash: fc:4e:20:73:e2:72: syntax error in expression (error token is ":4e:20:73:e2:72")

我怎么能告诉bash给定的键是一个完整的字符串.

How can I tell bash that the given key is a whole string.

推荐答案

这不是一个关联数组.您需要使用declare -A，而不是declare -a.

That's not an associative array. You need to use declare -A, not declare -a.

$ declare -A SrcDstMap
$ SrcDstMap["9c:4e:20:73:e2:72"]="ff:ff:ff:ff:ff:ff"
$ declare -p SrcDstMap
declare -A SrcDstMap=([9c:4e:20:73:e2:72]="ff:ff:ff:ff:ff:ff" )

---

declare -a创建一个数字索引数组，因此shell尝试将索引解析为数字.

---

declare -a creates a numerically indexed array, so the shell is trying to parse your index as a number.

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