Question

I’m fairly new to Powershell but I’ve got a rather interesting problem. I have a logfile which contains different IP Addresses. The biggest portion of the logfile is localhost generated content.

I want to filter all those entries which are NOT from the certain localhost ip.

How would I do that with REGEXs or is there a more elegant solution?

Cheers

Answer 1

to select lines with a particular ip try:

 get-content c:\mylogfile.log | select-string -pattern '192.168.1.100'

to select lines without a particular ip try:

 get-content c:\mylogfile.log | ? { $_ -notmatch '192.168.1.100' }

to select lines without a particalr ip but with at least an ip try:

 get-content c:\mylogfile.log | ? { $_ -notmatch '192.168.1.100' } |
? { $_ -match '\b(?:\d{1,3}\.){3}\d{1,3}\b' }