or download this
27170 execve("/usr/bin/perl", ["perl", "main.pl", "19"], [/* 17 vars *
+/]) = 0
27170 brk(0) = 0xe129000
27170 mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS
+, -1, 0) = 0x2b5734782000
...
27170 stat("/usr/local/lib/perl5/5.16.1/integer.pm", {st_mode=S_IFREG|
+0444, st_size=3266, ...}) = 0
27170 open("/usr/local/lib/perl5/5.16.1/integer.pm", O_RDONLY) = 6
...