-Install using apt-get (on Ubuntu or Debian-based OS):
-$ sudo apt-get install libfile-which-perl libtext-diff-perl
+Install using apt (on Ubuntu or Debian-based OS):
+$ sudo apt install libfile-which-perl libtext-diff-perl
+
+Install using yum (on Centos or similar distros):
+$ yum install perl-File-Which perl-Text-Diff