Question

请考虑以下here-string，我尝试使用模板进行Nagios定义。

$blankDefinition = @"
define host{
        use             windows-server  ; Inherit default values from a template
        host_name       {0}       ; The name we're giving to this host
        alias           {0}       ; A longer name associated with the host
        address         {1}     ; IP address of the host
        }

"@

我有一个脚本可以确定哪些服务器不在nagois中。因为它循环我试图让它为我吐出一个定义，以便我可以复制并粘贴到我的Nagios配置中。

$comparison | %{
    $blankDefinition -f $($_.serverName),$($_.ipAddress)
}

哪个让我知道以下错误：

Error formatting a string: Input string was not in a correct format..

这样的东西很好用

@"
Testing
One
{0}
Three
"@ -f "Twelve"

然后我发现这是因为其他花括号。有没有一种方法可以使用-f格式化我的字符串，同时保留括号？或者我是否只能使用变量替换？

Answer 1

添加另一组花括号似乎有效：

$blankDefinition = @"
define host{{
        use             windows-server  ; Inherit default values from a template
        host_name       {0}       ; The name we're giving to this host
        alias           {0}       ; A longer name associated with the host
        address         {1}     ; IP address of the host
        }}

"@

$blankDefinition -f 'foo', 'bar', 'foo'

输出：

define host{
        use             windows-server  ; Inherit default values from a template
        host_name       foo       ; The name we're giving to this host
        alias           foo       ; A longer name associated with the host
        address         bar     ; IP address of the host
        }

在包含花括号的字符串上使用-f运算符

1 个答案: