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Nobody. There's been no serious usage of System III in decades.
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Who is Unix work performed by?
Unix work is performed by users of the unix system, for application and system programs, or anything that requires a Unix system.
Is a Unix a real operating system?
No. This is a common misconception. The source code to Unix operating systems has traditionally been licensed to vendors, but the code was never made available to most users. Some of the code from Unix systems prior to System III was released under a BSD license in 2002, but most System III and later code is still proprietary.
What is a UNIX command that will count how many users have logged on and also the users list in the UNIX system?
There are many ways to do this, but the fastest and easiest is to use the 'uptime' command, which will tell you in a summary line how many users are logged in.
What is the three categories of users in a Unix environment?
Unix has the following categories of users: Superuser - root account, can do anything on the system ordinary user - has no special privileges restricted user - is restricted in what they can do in the shell and programs they can run.
What is the purpose of UNIX?
The UNIX OS is an operating system, which has the primary responsibility of managing security and resources for users. It has the same "purpose" as any other operating system, such as Windows, z/os, VMS, etc.
Unix command to count how many users have logged on to the unix system?
The 'uptime' command will tell you exactly how many users are on the system. There are other variations of this, including counting the number of words from the 'users' command, etc., but this is the easiest.
What is the purpose of UNIX OS?
The UNIX OS is an operating system, which has the primary responsibility of managing security and resources for users. It has the same "purpose" as any other operating system, such as Windows, z/os, VMS, etc.
Is UNIX used primarily with mainframes as a network operating system?
No. Licensed Unix implementations are a proprietary flexible general purpose operating system originally marketed for minicomputers and mid-range computers to support multiple users and tasks. When Personal Computers became available, versions of Unix were created for them. Unix was also implemented for the IBM mainframe. This is not the same as Linux which is an open source free system with many of the same capabilities and look & feel of unix but without the licensing requirement of unix.
What is uucp?
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.
Are there still people using unix?
Yes, quite a bit of companies and users use unix.
How do you find out what users are in a group on a POSIX or Unix system?
Look at the /etc/group file; this has all the groups and the members of each group.
What makes Unix a multi-user operating system?
Unix is considered a multi-user operating system because multiple users may use the server/system at the same time. Each user has their own address and process space and they don't interfere with each other.
