Wesley Setree <[log in to unmask]> wrote:
> I keep hearing all this jargon about Posix programming on the 3000. What
is it ( I know I need Posix files > on my system ) and why do I need it (
how will it enhance my current environment )?

I don't see that anyone has answered this, so I'll give it a go.

POSIX is the portable, Unix-like operating system interface definition that
was developed by the IEEE.  It consists of several levels, including POSIX.1
for operating system calls from C programs, and POSIX.2 for standard shell
(command interpreter) and command-line utitlities.  There are other
extensions, e.g. POSIX.4 for real-time programming and POSIX.1e for more
security support, but .1 and .2 are usually what is meant by POSIX support.
Besides Unix and Unix-like operating systems, many other operating systems
have been retro-fitted with POSIX compatibility, including VMS, OS/390,
MPE/iX, and Windows NT.
(See
http://www.whatis.com/WhatIs_Search_Results_Exact/1,282033,,00.html?query=po
six)

If you are careful, you can write programs which can be used on a great
variety of operating systems with little or no modification.

The most important advantage to MPE/iX users is that it allows us to use
Apache, Perl, Sendmail, Java, etc.

There are a lot of free programs that can be used on MPE/iX with just a
little work.