or download this
$ perl test.pl
/home/tinyos/Monks/TestDir/2018-01-03/sys.log:1:127.0.0.1 This is insi
+dent 1 in 2018-01-05
...
/home/tinyos/Monks/TestDir2/2018-01-03/sys.log:1:127.0.0.1 This is ins
+ident 1 in 2018-01-05
/home/tinyos/Monks/TestDir2/2018-01-03/sys.log:2:127.0.0.2 This is ins
+ident 2 in 2018-01-05
/home/tinyos/Monks/TestDir2/2018-01-03/sys.log:4:127.0.0.1 This is sec
+ond insident 4 in 2018-01-05