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Questions tagged [vms]

VMS is any operating system of the VMS family: OpenVMS, VAX/VMS, and VAX-11/VMS which run on the VAX, Alpha, and Itanium-based families of computers. Note: This tag should not, as a rule, be used for Virtual Machines (VMs).

(Open Virtual Memory System), previously known as VAX-11/VMS (1975-1980), VAX/VMS (1980s), and OpenVMS (since 1992) is a computer operating system that runs on VAX, Alpha and Itanium-based families of computers.

VMS was developed specifically for 32-bit processing in 1974, based on RSX-11 for PDP-11 computers. VMS simultaneously supports realtime, interactive, and batch operations. Its API is uniquely distinct from other operating systems, though a high degree of compatibility is available when development targets the C language runtime libraries.

Since the 1990s, an -based GUI is available on workstations.

is the command shell and batch language of VMS.

Note: This tag should not, as a rule, be used for Virtual Machines (VMs).

Reference:

63 questions
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Moving from VMS to Unix

Once upon a time, a team of guys sat down and wrote an application in C, running on VMS on a VAX. It was a rather important undertaking and runs a reasonably important back-end operation at LargeCo. This whole shebang works so well that…
Brian Dunbar
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Java on OpenVMS?

We run batch files on our OpenVMS Alpha and Integrity servers. Up until now they have been written in COBOL. As you can imagine there are many reasons why will not be able to maintain that process. At the same time we have a team of developers that…
G-Lam
6
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3 answers

Simple CGI web server in Python on VMS

I am trying to run an extremely simple CGI server on VMS done in python. import sys from BaseHTTPServer import HTTPServer from CGIHTTPServer import CGIHTTPRequestHandler server_address=('',8080) httpd = HTTPServer(server_address,…
McKracken
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How can I copy a file from VMS to Windows and back again?

I am trying to copy C source files from a vms alpha to a windows machine to allow easier editing of the code. (VMS editor is just a text editor and it would be nice to have syntax highlighting etc) I can copy this across using Exceed FTP and this…
Matt
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How can I disable variable interpolation with the Perl substitution operator?

I'm trying to replace a particular line in a text file on VMS. Normally, this is a simple one-liner with Perl. But I ran into a problem when the replacement side was a symbol containing a VMS path. Here is the file and what I tried: Contents of…
Michael Kristofik
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what is equivalent command of unix which in VMS

I have a tool xyz in vms.I want to get location where it is installed.For example in unix we can achieve this by using which command.So please help me vms equivalent of this command.
vikas
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4
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how to run a c program with reading command line parameters in openvms?

I built a simple program try to print the command line parameters. The code is below and I built an executable file (TEST.EXE). int main(int argc, char *argv[]) { int i; printf("%s\n",argv[0]); for (i = 1; i < argc; i++) …
Y.C.
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Is there a reasonable way to implement a cd command on VMS?

I would like to be able to say things like cd [.fred] and have my default directory go there, and my prompt change to indicate the full path to my current location.
EvilTeach
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Source code analyzing tool for COBOL on VMS/VAX Platform

Can someone please recommend a tool for analyzing, improving, finding "dead code", provide statistics etc. for a source code on COBOL language on VMS/VAX OS and RDB Database? Thanks.
Azarya Youshvaev
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What's the correct regexp pattern to match a VMS filename?

The documentation at http://h71000.www7.hp.com/doc/731final/documentation/pdf/ovms_731_file_app.pdf (section 5-1) says the filename should look like this: node::device:[root.][directory-name]filename.type;version Most of them are optional (like…
bengrine
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vms fortran read/write unit designation

I have been tasked with porting some old (circa 1986) VAX VMS FORTRAN code to c++ and have run into a bit of a stumbling block. The following two lines of code are part of a computed goto. WRITE(2'N) (Y (I), I = 1, 5) READ(2'N, ERR = 48) (Y (I), I…
Thomas Gamble
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Change prompt in OpenVMS

I am looking for some assistance with openVMS. The default prompt under VMS is $ I want to update this to reflect the current working directory that I am located in as I can in Unix/Linux when I change directories. I created a file named login.com…
Big_Papa_B
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hide error messages in dcl script

I have a test script I'm running that generates some errors,shown below, I expect these errors. Is there anyway I can prevent them from showing on the screen however? I use the $ write sys$output to display if there is an expected error. I…
user1943219
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VMS EDT - How to select the complete content of the file?

I have been using VMS EDT for a while. I would be editing/ replacing large number of lines in the text files and saving it as a different version. As for as I am aware, the only way to delete the characters in the text file is pressing delete key.…
Arun Annamalai
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OS: how does kernel virtual memory help in making swap pages of the page table easier?

Upon reading this chapter from "Operating Systems: Three Easy Pieces" book, I'm confused of this excerpt: If in contrast the kernel were located entirely in physical memory, it would be quite hard to do things like swap pages of the page table to…
Glenn Mohammad
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