[CLUE-Tech] If I want to install a program to extract "rar" files?

[Joe Linux]

http://linux.tucows.com/system/preview/48140.html

The instructions (?) are as follows:


###################################################################
# Installing RAR executables, configuration files and SFX modules #
# to appropriate directories                                      #
###################################################################

PREFIX=/usr/local

install:
    cp rar unrar $(PREFIX)/bin
    cp rarfiles.lst /etc
    cp default.sfx $(PREFIX)/lib


In all honesty, I really don't know exactly what to do. Presently I have 
a folder in "/apps" (a directory I created) called "rar"

So I guess it's in /apps/rar

[jl at user-10cm429 apps]$ ls
netscape-i686-pc-linux-gnu-installer.tar.gz
rarlinux-3.1.1.tar.gz
netscape-installer/
zip-2.3-9mdk.i586.rpm
rar/
[jl at user-10cm429 apps]$

Here's what's inside /rar

[jl at user-10cm429 jl]$ cd /apps/rar
[jl at user-10cm429 rar]$ ls
default.sfx*  Makefile   rar_faq.txt   rar_static*  register.txt  unrar*
file_id.diz   order.txt  rarfiles.lst  rar.txt      rereg.txt     
whatsnew.txt
license.txt   rar*       rar_site.txt  readme.txt   technote.txt
[jl at user-10cm429 rar]$

What do I do now?