PowerShell equivalent to grep -f

powershell grep
Fordio picture Fordio · Mar 4, 2013 · Viewed 281.7k times · Source

I'm looking for the PowerShell equivalent to grep --file=filename. If you don't know grep, filename is a text file where each line has a regular expression pattern you want to match.

Maybe I'm missing something obvious, but Select-String doesn't seem to have this option.

Answer

Frode F. picture Frode F. · Mar 4, 2013

The -Pattern parameter in Select-String supports an array of patterns. So the one you're looking for is:

Get-Content .\doc.txt | Select-String -Pattern (Get-Content .\regex.txt)

This searches through the textfile doc.txt by using every regex(one per line) in regex.txt

Related questions

Determine installed PowerShell version

How can I determine what version of PowerShell is installed on a computer, and indeed if it is installed at all?

Read More
PowerShell says "execution of scripts is disabled on this system."

I am trying to run a cmd file that calls a PowerShell script from cmd.exe, but I am getting this error: Management_Install.ps1 cannot be loaded because the execution of scripts is disabled on this system. I ran …

Read More
How to run a PowerShell script

How do I run a PowerShell script? I have a script named myscript.ps1 I have all the necessary frameworks installed I set that execution policy thing I have followed the instructions on this MSDN help page and am trying …

Read More