Hi!, I am trying to parse log4j date time and check the time difference between line in realtime. If somebody has a better idea to make the below line shorter i would love to see it. 
tail -f mylog.log | perl -e 'use POSIX qw( mktime );$l=0;$t=0;while(<S
+TDIN>){if(/^(\d{4}-\d{2}-\d{2}\s\d{2}:\d{2}:\d{2}),(\d{3})/){ $o="$1 
+$2"; @a = reverse split( "[-: ]", $1);$a[3]-=1;$a[4]-=1;$a[5]-=1900; 
+if(!$l){$t=mktime(@a,0,0,0)*1000+$2; $l=1;} else { $t2=mktime(@a,0,0,
+0)*1000+$2;$e=$t2-$t;$t=$t2;$l=0;print "$o $e\n";}}}'

[download]
Thanks a lot

In reply to One long liner to make it short by fredo2906

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