PowerShell equivalent to grep -f

Question

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

Answer 1

PS) new-alias grep findstr
PS) C:\WINDOWS> ls | grep -I -N exe

105:-a---        2006-11-02     13:34      49680 twunk_16.exe
106:-a---        2006-11-02     13:34      31232 twunk_32.exe
109:-a---        2006-09-18     23:43     256192 winhelp.exe
110:-a---        2006-11-02     10:45       9216 winhlp32.exe

PS) grep /?