22-04-2018 | Remy van Elst | Text only version of this article
(You can read all my OpenVMS articles by clicking the picture above)
Here are some small titbits I found out this week on the DECUServe OpenVMS system. Not enough to write a blogpost on their own, but collected together.
To show your shell history from the current session:
1 show proc 2 proc 3 htop 4 top 5 notes 6 t 7 hobbyist 8 hobbyi 9 show license 10 show terminal 11 set terminal /backspace=delete 12 show terminal 13 set terminal /backspace=backspace 14 show terminal 15 hello this is a test $
To view system uptime and OpenVMS version:
$ SHOW SYSTEM /NOPROC
OpenVMS V8.4-2L2 on node EISNER 8-APR-2018 14:13:11.07 Uptime 17 03:22:55
Show all the logged in users and their process, like the
w command on linux:
$ SHOW USERS /FULL OpenVMS User Processes at 8-APR-2018 14:19:05.07 Total number of users = 6, number of processes = 6 Username Process Name PID Terminal <login> _VTA4425: 00009B23 VTA4425: (disconnected) EXAMPLE SSHD 0355A PTD 00008EE4 FTA550: (ssh/$IP:57039) GOATLEY Goat Busters 00009A55 FTA547: (ssh/$HOSTNAME.com:17251) JACKSON JACKSON 00005314 FTA269: (ssh/host-$IP.static.as$AS.net:59656) MALMBERG >>>B ewa0: 00009664 FTA543: (ssh/$IP:59826) SCHENKENBERG SCHENKENBERG 00007E83 FTA442: (ssh/ool-$HOSTNAME:47078)
Your home directory on OpenVMS is not known as
~ (as on UNIX) but as
SYS$LOGIN. As we learned in an earlier article, OpenVMS uses the
SET/SHOW DEFAULT commands to navigate directories. So the equivalent of
cd ~ on linux, or even shorter,
SET DEF SYS$LOGIN:
$ SET DEFAULT SYS$LOGIN $ SHOW DEF DISK_USER:[DECUSERVE_USER.EXAMPLE] $ DIR SYS$LOGIN Directory EISNER$DRA3:[DECUSERVE_USER.EXAMPLE] $MAIN.TPU$JOURNAL;1 .VIMINFO;1 A.;1 ICREATEDAFOLDERYAY.DIR;1 LOGIN.COM;2 LOGIN.COM;1 LOGIN_COM.TPU$JOURNAL;1 MAIL$AC8D2981000500B2.MAI;1 MAIL.MAI;1 NOTES$NOTEBOOK.NOTE;1 RAYMII.DIR;1 REMY.DAT;3 REMY.DAT;2 REMY.DAT;1 SSH.DIR;1 SSH2.DIR;1 SSH3.DIR;1 WWW.DIR;1 Total of 18 files.
The equivalent of the
cd .., to go up one folder on linux, on OpenVMS is
[-]. So if you are in
EISNER$DRA3:[DECUSERVE_USER.EXAMPLE.WWW] and want to go up one level to
EISNER$DRA3:[DECUSERVE_USER.EXAMPLE] then enter:
$ SET DEFAULT [-]
I also hit my first bug. I was writing a note (in
NOTES, a kind of forum) and I pasted a link. It crashed with the following error:
Fatal DECTPU internal error, please submit an SPR including: 1. A description of the actions that revealed the bug 2. The versions of DECTPU and the operating system you are running 3. Machine-readable media containing: - The source files of your DECTPU section and command files - Copies of the data files used during the session - The keystroke journal file if one exists 4. Your terminal characteristics, if applicable 5. A description of the command used to invoke DECTPU Shareable base: 7BC54884 Ident: DECTPU V3.2 2017-05-22 22:49 Updater base: 7C03E034 Ident: DECTPU V3.2 2017-05-22 22:49 Updater file: TPU$CCTSHR %SYSTEM-F-ACCVIO, access violation, reason mask=00, virtual address=0000000000000024, PC=00000000000B5A14, PS=0000001B $
So I retyped the note and pasted the error in, maybe someone knows more.
Edit: they know more on the DECUS system. This happens when you CRTL+C out of the NOTES application.
See this article as well.
MAIL> dir MAIL # From Date Subject 1 EISNER::CORNELIUS 29-MAR-2018 Hello again 2 (Deleted) 3 EISNER::CORNELIUS 31-MAR-2018 RE: Hello again 4 EISNER::PARRIS 2-APR-2018 RE: Test message MAIL>
MAIL> DIR /FOLDER Listing of folders in EISNER$DRA3:[DECUSERVE_USER.EXAMPLE]MAIL.MAI Press CTRL/C to cancel listing MAIL TEST MAIL>
MAIL> dir TEST TEST # From Date Subject 1 IN%"firstname.lastname@example.org" 31-MAR-2018 RE: Tesrt message MAIL>
DIR will list the
To store a message in a folder, use the
FILE command in the
MAIL> file test Folder TEST does not exist. Do you want to create it (Y/N, default is N)? y %MAIL-I-NEWFOLDER, folder TEST created MAIL>
As you can see, if the folder does not exist, it will be created.
On most OpenVMS systems the
WASTEBASKET is purged when the you use the command,
EXIT to exit
QUIT, the old, deleted mail remains in the
WASTEBASKET. If you're in a hurry to purge the
WASTEBASKET, then you can do it manually with the
MAIL> dir TEST TEST # From Date Subject 1 IN%"email@example.com" 31-MAR-2018 RE: Tesrt message MAIL> del 1 MAIL> dir WASTEBASKET WASTEBASKET # From Date Subject 1 IN%"firstname.lastname@example.org" 31-MAR-2018 RE: Tesrt message MAIL> purge %MAIL-I-DELMSGS, 1 message deleted
By default all mail related files are stored in your home directory. This can become quite a full listing, you can change it to another folder. In the
MAIL> SET MAIL [.MAIL] %MAIL-I-CREATED, DISK_USER:[DECUSERVE_USER.EXAMPLE.MAIL] created
Now mail related files will be placed in
[.MAIL] and your home directory will stay a bit cleaner.
DIR command, two flags can be given,
/OWNER, to get a more comprehensive list including the file owner and permissions:
$ DIR /OWNER /PROTECTION Directory DSA3:[DECUSERVE_USER.EXAMPLE] $MAIN.TPU$JOURNAL;1 [EXAMPLE] (RWED,RWED,,) .VIMINFO;1 [EXAMPLE] (RWED,RWED,,) A.;1 [EXAMPLE] (RWED,RWED,,) ICREATEDAFOLDERYAY.DIR;1 [EXAMPLE] (RWE,RWE,,) LOGIN.COM;2 [EXAMPLE] (RWED,RWED,,) LOGIN.COM;1 [EXAMPLE] (RWED,RWED,,) LOGIN_COM.TPU$JOURNAL;1 [EXAMPLE] (RWED,RWED,,) MAIL.DIR;1 [EXAMPLE] (RWE,RWE,,) NOTES$NOTEBOOK.NOTE;1 [DECUSERVE] (RWE,RWE,,) RAYMII.DIR;1 [EXAMPLE] (RWE,RWE,,) REMY.DAT;3 [EXAMPLE] (RWED,RWED,,) REMY.DAT;2 [EXAMPLE] (RWED,RWED,,) REMY.DAT;1 [EXAMPLE] (RWED,RWED,,) SSH.DIR;1 [EXAMPLE] (RWE,RWE,,) SSH2.DIR;1 [EXAMPLE] (RWE,RWE,,) SSH3.DIR;1 [EXAMPLE] (RWE,RWE,,) WWW.DIR;1 [EXAMPLE] (RWE,RWE,,RE) Total of 17 files.
The permission column includes in order: