如何使用powershell将字符串变量拆分为两个数组对象变量

Question

我需要从下面的输入中分离ip和主机名，并使用powershell转换为数组对象我有一个类似的输入

$docu_results = 'existing IPs: "192.168.1.12","","192.168.1.15","192.168.1.16"
existing hostname: "node.example.com","node1.example.com","node2.example.com",""'

我的预期输出将低于

$existing_ips = "192.168.1.12","","192.168.1.15","192.168.1.16"
$existing_hosts = "node.example.com","node1.example.com","node2.example.com",""

上面的变量existing_ips和existing_hosts可能有空或null值，以及这些变量之间的等效值，我需要将其保存在一个单独的变量中

最终输出将低于

192.168.1..12 :: node.example.com
192.168.1..15
192.168.1..15 :: node2.example.com
192.168.1..16
missing data: 
value is missing for '' -> 'node1.example.com' 
value is missing for '192.168.1.16' -> ''

Answer 1

虽然可能有更简洁的解决方案，但为了概念清晰，我会使用基于-split和-replace:的多步骤方法

$docu_results = 'existing IPs: "192.168.1.12","","192.168.1.15","192.168.1.16"
existing hostname: "node.example.com","node1.example.com","node2.example.com",""'
# Extract the two sub-lists from the input string.
$ipList, $hostList = 
$docu_results -split 'existing IPs:|existing hostname:' -ne ''
# Split each list into an array of its elements.
$existing_ips = $iplist.Trim() -split ',' -replace '"'
$existing_hosts = $hostList.Trim() -split ',' -replace '"'

注：

• 使用数组作为LHS，PowerShell比较运算符充当筛选器(请参阅此答案(，这意味着上面的-ne ''会从-split操作输出的数组中筛选出任何空令牌；空(-string(标记是由于其中一个分隔符位于输入字符串的最开始