'then' expected

I have this simple installation code but it just dosen't work I have it on Pastebin.

http://pastebin.com/WYyPW4FP

Just in case, I will place the code below here:

——————————————————————————
print 'BOOT INSTALLER VERSION 0.0.1 Alpha'
print ' '
print 'Trademark AbCraft. NET Studios 2013'
print ' '
print 'Please choose a software version you would like to install.'
print ' '
print '1: V0.1 Alpha'
local input = read()
if input = '1' then
local PasteBinCode = 'FEdJpcsu'
end
print 'INSTALLING SOFTWARE'
shell.run('pastebin','get',PasteBinCode,'startup')
print ''
print 'Installation complete. If there are any errors, please make sure enableAPI_http = 1 or true.'
reboot

——————————————————————————

It gives me an error. This error is:

bios:337: [string "install"]:9: 'then' expected

I have changed the color of the error into red.

Check out the Common Errors section of the Read This Post Before Asking Questions sticky, this exact issue is covered there.

= should be ==

It should be

if input == '1' then

Tip: Put your code in code tags [-CODE] Code here [-/CODE] ( Without '-' )

^And spoilers. [-spoiler]

Spoiler

This will nicely hide the code if the program is a long wall of text.