Better Powershell script for parsing webmail logs?

i looking better way parse webmail logs using powershell , use help. here sample of logs:

111.111.111.111, domain\john.smith, 5/14/2012, 0:00:00, w3svc1, servername, 111.222.333.444, 359, 427, 483, 200, 0, post, /microsoft-server-activesync, user=john.smith&deviceid=appl6789321&devicetype=iphone&cmd=ping&log=v4tnasnc:0a0c0d0fs:0a0c0d0sp:1c17i21921s1457906r0s0l900h0p,
222.222.222.222, will.smith@my.domain.com, 5/14/2012, 0:00:00, w3svc1, servername, 111.222.333.444, 62, 578, 340, 200, 0, post, /microsoft-server-activesync, cmd=sync&user=will.smith@my.domain.com&deviceid=motoa0000022fe9a&devicetype=motodroidx451&log=v4tcassc:0a0c0d0fs:0a0c0d0sp:1c3i2790s39850r0s0l0h0p,
333.333.333.333, my.domain.com\philip.smith, 5/14/2012, 0:00:00, w3svc1, servername, 111.222.333.444, 375, 427, 482, 200, 0, post, /microsoft-server-activesync, user=philip.smith&deviceid=applc5fh661wddp7&devicetype=iphone&cmd=ping&log=v4tnasnc:0a0c0d0fs:0a0c0d0sp:1c23i27319s1244772r0s0l900h0p,

i have looked @ few options parsing this, android devices seem break pattern depending on type of device is. curious if there way in powershell grab parts in bold. sure relatively simple task, still new powershell , have never used parse log file of nature. or links useful information appreciated.

you can same select-string:

$file = 'c:\webmail.log' # <- fully qualified path to your log $pattern = 'user=(.+)&deviceid=(.+)&devicetype=([^&]+)' select-string -pattern $pattern -path $file | foreach-object {   new-object psobject -property @{     user = $_.matches[0].groups[1]     deviceid = $_.matches[0].groups[2]     devicetype = $_.matches[0].groups[3]   } }

Windows Server  >  Windows PowerShell