$ ls -la
total 272
drwxrwxr-x 2 meetal meetal  4096 Jan  3 12:06 .
drwxrwxr-x 3 meetal meetal  4096 Jan  3 11:54 ..
-rw-rw-r-- 1 meetal meetal 20188 Jan  3 11:54 4_os_10.txt
-rw-rw-r-- 1 meetal meetal 14225 Jan  3 11:54 4_os_11.txt
-rw-rw-r-- 1 meetal meetal 20788 Jan  3 11:54 4_os_12.txt
-rw-rw-r-- 1 meetal meetal  3217 Jan  3 11:54 4_os_13.txt
-rw-rw-r-- 1 meetal meetal 13845 Jan  3 11:54 4_os_14.txt
-rw-rw-r-- 1 meetal meetal  1117 Jan  3 11:54 4_os_15.txt
-rw-rw-r-- 1 meetal meetal  1929 Jan  3 11:54 4_os_16.txt
-rw-rw-r-- 1 meetal meetal 15223 Jan  3 11:54 4_os_17.txt
-rw-rw-r-- 1 meetal meetal  2020 Jan  3 11:54 4_os_18.txt
-rw-rw-r-- 1 meetal meetal 14866 Jan  3 11:54 4_os_19.txt
-rw-rw-r-- 1 meetal meetal  3068 Jan  3 11:54 4_os_1.txt
-rw-rw-r-- 1 meetal meetal 16040 Jan  3 11:54 4_os_20.txt
-rw-rw-r-- 1 meetal meetal 10557 Jan  3 11:54 4_os_2.txt
-rw-rw-r-- 1 meetal meetal 10653 Jan  3 11:54 4_os_3.txt
-rw-rw-r-- 1 meetal meetal  6558 Jan  3 11:54 4_os_4.txt
-rw-rw-r-- 1 meetal meetal 18823 Jan  3 11:54 4_os_5.txt
-rw-rw-r-- 1 meetal meetal  5934 Jan  3 11:54 4_os_6.txt
-rw-rw-r-- 1 meetal meetal 17570 Jan  3 11:54 4_os_7.txt
-rw-rw-r-- 1 meetal meetal  7785 Jan  3 11:54 4_os_8.txt
-rw-rw-r-- 1 meetal meetal 13825 Jan  3 11:54 4_os_9.txt
-rw------- 1 meetal meetal 12288 Jan  3 11:54 .inna.pl.swp
-rw-rw-r-- 1 meetal meetal   651 Jan  3 11:54 test.pl


##</code><code>##

$ perl test.pl *.txt
$VAR1 = [];