从每个数组元素中提取最后一个字符串

Question

我创建了一个数组，如下所示：

declare -p RePos=("$MntPnt"/Module-Basesystem\ sles-15-"$ServPck"-server-basesystem-x86_64
                  "$MntPnt"/Module-Server-Applications\ sles-15-"$ServPck"-server-application-x86_64
                  "$MntPnt"/Module-Development-Tools\ sles-15-"$ServPck"-server-development_tools-x86_64
                 )

然后我尝试（但未能）打印/回显每个数组元素的最后一个字符串，即

sles-15-sp3-server-basesystem-x86_64
sles-15-sp3-server-application-x86_64
sles-15-sp3-server-development_tools

使用以下内容：

for Add_RePos in "${!RePos[@]}"
do
  echo "
  $(tput setaf 2)--> Creating "${RePos[@]-1}" Repositories <--$(tput sgr0)
  "
done

但是，当我运行关联的脚本时，我没有得到所需的结果，只是得到了数组的所有元素。

# sh CreateReposWithISO.sh

declare -a RePos=([0]="/mnt/Module-Basesystem sles-15-sp3-server-basesystem-x86_64" [1]="/mnt/Module-Server-Applications sles-15-sp3-server-application-x86_64" [2]="/mnt/Module-Development-Tools sles-15-sp3-server-development_tools-x86_64")

  --> Creating /mnt/Module-Basesystem sles-15-sp3-server-basesystem-x86_64 /mnt/Module-Server-Applications sles-15-sp3-server-application-x86_64 /mnt/Module-Development-Tools sles-15-sp3-server-development_tools-x86_64 Repositories <--


  --> Creating /mnt/Module-Basesystem sles-15-sp3-server-basesystem-x86_64 /mnt/Module-Server-Applications sles-15-sp3-server-application-x86_64 /mnt/Module-Development-Tools sles-15-sp3-server-development_tools-x86_64 Repositories <--


  --> Creating /mnt/Module-Basesystem sles-15-sp3-server-basesystem-x86_64 /mnt/Module-Server-Applications sles-15-sp3-server-application-x86_64 /mnt/Module-Development-Tools sles-15-sp3-server-development_tools-x86_64 Repositories <--

# bash --version
GNU bash, version 4.4.23(1)-release (x86_64-suse-linux-gnu)

我尝试了几种不同的格式来产生我想要的结果，但没有成功，即

${RePos[${#RePos[@]} - 1]}

Answer 1

看起来您可能需要一个关联数组：

#!/bin/bash

MntPnt=/mnt/c
SerPck=sles-15-sp3
declare -A RePos=("$MntPnt"/Module-Basesystem\  sles-15-"$ServPck"-server-basesystem-x86_64
                  "$MntPnt"/Module-Server-Applications\  sles-15-"$ServPck"-server-application-x86_64
                  "$MntPnt"/Module-Development-Tools\  sles-15-"$ServPck"-server-development_tools-x86_64
                 )
for Add_RePos in "${!RePos[@]}"
do
  echo "\"$Add_RePos\" Creating \"${RePos[$Add_RePos]}\" Repositories"
done

输出：

"/mnt/c/Module-Development-Tools " Creating "sles-15--server-development_tools-x86_64" Repositories
"/mnt/c/Module-Basesystem " Creating "sles-15--server-basesystem-x86_64" Repositories
"/mnt/c/Module-Server-Applications " Creating "sles-15--server-application-x86_64" Repositories