Costs for a Unix license vary by vendor and number of users on the system. Most new system hardware comes bundled with at least a 2 user license. It can get very expensive depending on the vendor and the bundled products.
I've seen Unix versions on mainframes that are upwards of 20,000 dollars a year, and some server based versions that are under $1000.
see: What_is_the_cost_of_a_Unix_server
The cost depends on whether or not you buy one new or used; it also depends on which Unix you want to run. For used units you can buy one for a few hundred dollars on up.
One generally has to purchase the server hardware, which can vary depending on hardware - a cheap server may cost $200 while more powerful ones can cost tens (or hundreds) of thousands of dollars. One also needs to purchase a Unix license - the price of this averages $9400 and will vary depending on the number of users one expects.
Most modern UNIX systems run as a 64-bit Operating System.
'cu' stands for Call Unix. It used to be used for calling dialup services from one Unix to another. Hardly used anymore with networks (which are much faster)
In a sense it was free; in the early to mid-70s you could get a copy of Unix (without source code) from Bell Labs with only the cost of the postage for the materials.
Unix comes in multiple distributions some more secure than others. Much of the security also comes from how the system is configured. Most unix systems are fairly secure.
One of the major advantages of unix based hosting is that unix is free, so the cost is not an issue. Another cost benefit is that several free applications are available for Unix based servers so the money that would have been allotted to this could be utilized elsewhere. Unix is also very efficient because less system resources are required which means less bandwidth and RAM are used. This results in a smoother and faster site. Many languages were developed using Unix as well. This means that there are more applications will be able to run on your site than if you had chosen another platform.
If both Windows and Unix are using TCP/IP as their primary NOS there isn't much difference to speak of.
Some of your options are as follows: Open Solaris. It is based on Sun's Solaris Unix operating system. You can get it from http://opensolaris.org/os/ FreeBSD livecd http://livecd.sourceforge.net/ However, if your only goal is to learn shell scripting all the Linux/Unix variants use the same shells (usually some version of bash, sh, csh, tcsh, or zsh). The bash shell is the same if ran on Linux, Unix, or even Windows.
This depends on whether you change to a commercial variety of Unix, which has its own license costs. Additional costs may be incurred if you need to buy applications that run on UNIX for which you are currently running them on Windows (you have to re-buy the license since it is a different platform). Other than that, it is not possible to say for certainty what the cost would be without examining your requirements.
UUCP is the abbriviation of Unix to Unix copy. It is worldwide email system called UUCP or Unix to Unix copy.This email system was developed for the operating system called Unix.