消除空值 [英] Eliminate Nulls

问题描述

我没找到信息……

这个powershell脚本在LocalMachine中收集证书信息:

This powershell script collecting cert info in LocalMachine:

$cert_days = get-childitem cert:LocalMAchine -recurse  |
select  @{Name="{#CERTINFO}"; Expression={($_.FriendlyName)}} |
Sort "{#CERTINFO}"

write-host "{"
write-host " `"data`":`n"

convertto-json $cert_days 

write-host
write-host "}"

我不能排除空值或像"这样的空项目.

I can't exclude Nulls or empty items like " ".

使用 -ne $Null 我得到布尔结果，如真或假...

Using -ne $Null i get boolean results like true or false...

我很高兴听到您的建议如何消除空值或空条目

I would appreciate to hear Yours advice how to eliminate nulls or empty entries

推荐答案

要排除空条目，您可以添加一个过滤器来删除这些条目，最好在 Sort-Object 调用之前.例如

To exclude empty entries, you could add a filter to remove those, preferably before the Sort-Object call., e.g.

$certs = ls Cert:\LocalMachine\ -Recurse |
    Select @{Name = '{#CertInfo}'; Expression = {$_.FriendlyName}} |
    Where { $_.'{#CertInfo}' } |
    Sort '{#CertInfo}'

这篇关于消除空值的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！