CODEWITHSUNDEEP
stringreplacepowershell-2.0
soMuch2Learn
soMuch2Learn

Reputation: 187

Find and replace a portion of a string in a txt file

Working on a script that takes a FQDN from user input, then enters that server and domain name and adds it to a text file after the pattern ID=.

Have a text file and inside is a line that has ID=[some number]. I want to have a cmdlet change the [some number] that is found after ID= to 2 variables that I defined.

Solution from Ansgar:

$name,$domain,$rest = $serverName.split('.',3)
(get-content 'c:\file.txt') -replace "(ID=).*", "`$1$domain$name" | set-content 'c:\file.txt'

Using Powershell v2.

Upvotes: 0

Views: 72

Answers (1)

Ansgar Wiechers
Ansgar Wiechers

Reputation: 200293

Simply replace that number with the content of the variables, then write the text back to the file:

(Get-Content 'C:\file.txt') -replace '(ID=)\[\d*\]', "`$1$domain$name" |
    Set-Content 'C:\file.txt'

Upvotes: 1

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