$ cat pm_1199549_test_file.txt
2017-08-01 20MICRONS 37744
2016-08-01 20MICRONS 25966
2016-04-20 20MICRONS 30807
2016-04-01 20MICRONS 32780
####
$ perl -e 'local $/; @x = <>; use Data::Dump; dd \@x' pm_1199549_test_file.txt
[
"2017-08-01 20MICRONS 37744\n2016-08-01 20MICRONS 25966\n2016-04-20 20MICRONS 30807\n2016-04-01 20MICRONS 32780\n",
]
####
$ perl -e '{ local $/; } @x = <>; use Data::Dump; dd \@x' pm_1199549_test_file.txt
[
"2017-08-01 20MICRONS 37744\n",
"2016-08-01 20MICRONS 25966\n",
"2016-04-20 20MICRONS 30807\n",
"2016-04-01 20MICRONS 32780\n",
]