trouble installing win-rar

hi

i am trying to install win-rar & have doanloaded it from this site http://www.win-rar.com/download.html

once downloaded i can see the folder in my applications.

i click on rar but am met with a text box which reads

Last login: Tue Jul 17 19:45:36 on ttys000

/Users/jawadahmed/Downloads/rar\ 4/rar ; exit;

jawad-ahmeds-mac-mini:~ jawadahmed$ /Users/jawadahmed/Downloads/rar\ 4/rar ; exit;

RAR 4.20 Copyright (c) 1993-2012 Alexander Roshal 9 Jun 2012

Trial version Type RAR -? for help

Usage: rar <command> -<switch 1> -<switch N> <archive> <files...>

<@listfiles...> <path_to_extract\>

<Commands>

a Add files to archive

c Add archive comment

cf Add files comment

ch Change archive parameters

cw Write archive comment to file

d Delete files from archive

e Extract files to current directory

f Freshen files in archive

i[par]=<str> Find string in archives

k Lock archive

l[t,b] List archive [technical, bare]

m[f] Move to archive [files only]

p Print file to stdout

r Repair archive

rc Reconstruct missing volumes

rn Rename archived files

rr[N] Add data recovery record

rv[N] Create recovery volumes

s[name|-] Convert archive to or from SFX

t Test archive files

u Update files in archive

v[t,b] Verbosely list archive [technical,bare]

x Extract files with full path

<Switches>

- Stop switches scanning

@[+] Disable [enable] file lists

ad Append archive name to destination path

ag[format] Generate archive name using the current date

ai Ignore file attributes

ap<path> Set path inside archive

as Synchronize archive contents

av Put authenticity verification (registered versions only)

av- Disable authenticity verification check

c- Disable comments show

cfg- Disable read configuration

cl Convert names to lower case

cu Convert names to upper case

df Delete files after archiving

dh Open shared files

ds Disable name sort for solid archive

dw Wipe files after archiving

e[+]<attr> Set file exclude and include attributes

ed Do not add empty directories

en Do not put 'end of archive' block

ep Exclude paths from names

ep1 Exclude base directory from names

ep3 Expand paths to full including the drive letter

f Freshen files

hp[password] Encrypt both file data and headers

id[c,d,p,q] Disable messages

ierr Send all messages to stderr

ilog[name] Log errors to file (registered versions only)

inul Disable all messages

isnd Enable sound

k Lock archive

kb Keep broken extracted files

log[f][=name] Write names to log file

m<0..5> Set compression level (0-store...3-default...5-maximal)

mc<par> Set advanced compression parameters

md<size> Dictionary size in KB (64,128,256,512,1024,2048,4096 or A-G)

ms[ext;ext] Specify file types to store

mt<threads> Set the number of threads

n<file> Include only specified file

n@ Read file names to include from stdin

n@<list> Include files listed in specified list file

o[+|-] Set the overwrite mode

ol Save symbolic links as the link instead of the file

or Rename files automatically

ow Save or restore file owner and group

p[password] Set password

p- Do not query password

r Recurse subdirectories

r- Disable recursion

r0 Recurse subdirectories for wildcard names only

rr[N] Add data recovery record

rv[N] Create recovery volumes

s[<N>,v[-],e] Create solid archive

s- Disable solid archiving

sc<chr>[obj] Specify the character set

sfx[name] Create SFX archive

si[name] Read data from standard input (stdin)

sl<size> Process files with size less than specified

sm<size> Process files with size more than specified

t Test files after archiving

ta<date> Process files modified after <date> in YYYYMMDDHHMMSS format

tb<date> Process files modified before <date> in YYYYMMDDHHMMSS format

tk Keep original archive time

tl Set archive time to latest file

tn<time> Process files newer than <time>

to<time> Process files older than <time>

ts<m,c,a>[N] Save or restore file time (modification, creation, access)

u Update files

v Create volumes with size autodetection or list all volumes

v<size>[k,b] Create volumes with size=<size>*1000 [*1024, *1]

ver[n] File version control

vn Use the old style volume naming scheme

vp Pause before each volume

w<path> Assign work directory

x<file> Exclude specified file

x@ Read file names to exclude from stdin

x@<list> Exclude files listed in specified list file

y Assume Yes on all queries

z[file] Read archive comment from file

logout

[Process completed]

please help, im new to macs and this driving me insane 😟