select-object

Select-Object -First affects prior cmdlet in the pipeline

由 风格不统一 提交于 2021-01-28 08:50:02
问题 The PowerShell Strongly Encouraged Development Guidelines that cmdlets should Implement for the Middle of a Pipeline but I suspect that isn't doable for a parameter as -Last for the Select-Object. Simply because you can't determine the last entry upfront. In other words: you will need to wait for the input stream to finish until you define the last entry. To prove this, I wrote a little script: $Data = 1..5 | ForEach-Object {[pscustomobject]@{Index = "$_"}} $Data | ForEach-Object { Write-Host

Powershell .CSV values piped to select-objects returns empty records?

由 十年热恋 提交于 2019-12-24 19:53:09
问题 When i use import-csv to retrieve data from a .csv file I'm able to retrieve the data in the file in the console pane using Import-CSV: import-csv \\TestPath\licenses_v2.csv However, when i pipe that output to a select-object statement the same amount of rows are retrieved but they're now all empty. import-csv \\TestPath\licenses_v2.csv | select-object FirstName,LastName,Department,Title This occured after i began testing the following two seperate scripts, in an attempt to TRUNCATE before an

No error when selecting non-existing property

由 試著忘記壹切 提交于 2019-12-19 09:21:23
问题 I want PowerShell to throw an error when trying to select non-existing properties, but instead I get empty column as output. Example: $ErrorActionPreference=[System.Management.Automation.ActionPreference]::Stop; Set-StrictMode -Version 'Latest' Get-Process *ex* | Select-Object Id,ProcessName,xxx Id ProcessName xxx -- ----------- --- 9084 explorer 11404 procexp I wrote a script that is importing multiple text files by Import-Csv , but headers in those file may change, and I'll end up with

Trying to use Powershell to import information from a csv but unfortunately some of the results come out wrong

由 五迷三道 提交于 2019-12-12 01:17:25
问题 $AuditSuccess = Import-Csv -Path G:\LabLog.csv | Where-Object { $_.Keywords -like "Audit Success" } | Measure-Object | Select-Object count $AuditFailure = Import-Csv -Path G:\LabLog.csv | Where-Object { $_.Keywords -like "Audit Failure" } | Measure-Object | Select-Object count $AuditTotal = $AuditSuccess + $AuditFailure $EventID1 = Import-Csv -Path G:\LabLog.csv | sort | group Keywords | sort $_.EventID | select EventID -last 1 $EventID2 = Import-Csv -Path G:\LabLog.csv | sort | group

Select attributes or parameter with variable in PowerShell

由 偶尔善良 提交于 2019-12-11 05:27:22
问题 Using this code I get the desired result: Get-Service | select Name,Status But the following code will not work, do you know why? I want the user to choose his own selection of attributes. I store the attributes in a variable like shown below. But it won't work: $param = "Name,Status" Get-Service | select $param 回答1: You have to create an array of the properties you want to select: $param = "Name","Status" Get-Service | select $param Or you can split the string yourself to create an array:

PS Script is exporting an empty CSVs

由 早过忘川 提交于 2019-12-08 23:15:18
问题 I am having a helluva time trying to understand why this script is not working as intended. It is a simple script in which I am attempting to import a CSV, select a few columns that I want, then export the CSV and copy over itself. (Basically we have archived data that I only need a few columns from for another project due to memory size constraints). This script is very simple, which apparently has an inverse relationship with how much frustration it causes when it doesn't work... Right now

PS Script is exporting an empty CSVs

由 独自空忆成欢 提交于 2019-11-30 07:45:45
I am having a helluva time trying to understand why this script is not working as intended. It is a simple script in which I am attempting to import a CSV, select a few columns that I want, then export the CSV and copy over itself. (Basically we have archived data that I only need a few columns from for another project due to memory size constraints). This script is very simple, which apparently has an inverse relationship with how much frustration it causes when it doesn't work... Right now the end result is I end up with an empty csv instead of a csv containing only the columns I selected

How to get the captured groups from Select-String?

由 耗尽温柔 提交于 2019-11-28 08:53:17
I'm trying to extract text from a set of files on Windows using the Powershell (version 4): PS > Select-String -AllMatches -Pattern <mypattern-with(capture)> -Path file.jsp | Format-Table So far, so good. That gives a nice set of MatchInfo objects: IgnoreCase LineNumber Line Filename Pattern Matches ---------- ---------- ---- -------- ------- ------- True 30 ... file.jsp ... {...} Next, I see that the captures are in the matches member, so I take them out: PS > Select-String -AllMatches -Pattern <mypattern-with(capture)> -Path file.jsp | ForEach-Object -MemberName Matches | Format-Table Which

Powershell: Export a custom object to a CSV file - extract a single property value with Select-Object

由 独自空忆成欢 提交于 2019-11-27 05:39:19
I wrote a script that constructs a custom object and exports it to a CSV file: $reg = Get-ItemProperty HKLM:\SOFTWARE\McAfee\DLP\Agent | Select-Object agentversion $date = Get-ItemProperty 'C:\Program Files\McAfee' | Select-Object {$_.LastWriteTime} $date86 = Get-ItemProperty 'C:\Program Files (x86)\McAfee'| Select-Object {$_.LastWriteTime} New-Object -TypeName pscustomobject -Property @{ "Number1"=$reg "Number2"=$date86 "Number3"=$date } | export-csv -Path C:\****\desktop\stuff.csv -NoTypeInformation and the data row in the resulting CSV file is: "@{AgentVersion=9.4.112.22}","@{$

How to get the captured groups from Select-String?

由 非 Y 不嫁゛ 提交于 2019-11-27 02:29:23
问题 I'm trying to extract text from a set of files on Windows using the Powershell (version 4): PS > Select-String -AllMatches -Pattern <mypattern-with(capture)> -Path file.jsp | Format-Table So far, so good. That gives a nice set of MatchInfo objects: IgnoreCase LineNumber Line Filename Pattern Matches ---------- ---------- ---- -------- ------- ------- True 30 ... file.jsp ... {...} Next, I see that the captures are in the matches member, so I take them out: PS > Select-String -AllMatches
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