Regex for PS Script to read form a line - regex

Question

Regex from a line where I want specific things to be extracted. Example: In the line I have: This is a test 2016/01/23 This is test 04:05 AM this is a test Success Login at 01.33 sec. How can I extract only the date, time & success time. So output would be
(2016/01/23 04:05 AM Success 01.33 sec).
Appreciate your help. Cheers!

Answer 1

I suspect I'm going to answer, and then you're going to comment "my real data is completely different how do I match that?". Let's see.
# Here is your log line
$logLine = 'This is a test 2016/01/23 This is test 04:05 AM this is a test Success Login at 01.33 sec'
# Here is my regex which matches
# * date * time AMPM * Success Login time *
$myRegex = '.*(\d{4}/\d\d/\d\d).*(\d\d:\d\d \S\S).*Success Login at ([0-9.]+ \S+).*'
# Here is the test and output building
if ($logLine -match $myRegex) {
Write-Host "($($matches[1]) $($matches[2]) Success $($matches[3]))"
} else {
Write-Host "Log doesn't match"
}