PowerShell text file and csv read / write


PowerShell text file and csv read / write

This article is a summary of examples for creating and reading text and CSV files in PowerShell.

Create text file

'Name','Nummer' | out-file c:\temp\text.txt

Create CSV file

'Name,Nummer' | out-file c:\temp\text.csv

Attach CSV file content

'Walter,007' | out-file c:\temp\text.csv -Append

Read text file

Get-Content c:\temp\text.txt

CSV file from an object

By means of Export-CSV objects can be exported to a CSV file:

get-counter | Export-CSV test.csv -append

"append" adds values to an existing .csv file and creates a .csv file if none exists

Possibly useful additional parameters:

-Encoding UTF8 ... encodes the file in UTF8, may be needed in case of problems with umlauts

-Delimiter ";" ... Instead of "," as separator ";" is used

-NoTypeInformation -Force ... disables the first line in the CSV where PowerShell stores information about the file.

Read CSV file

Import-csv c:\temp\text.csv

Import-csv c:\temp\text.csv | select -ExpandProperty Nummer

read out certain entries from the CSV file

Import-csv c:\temp\text.csv | Where-Object {$_.Name -eq 'Walter'}

see also:  PowerShell Syntax: compare and nest 

read specific values from the CSV file

$(Import-csv c:\temp\text.csv | Where-Object {$_.Name -eq 'Walter'}).Nummer

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