kjb@zycad.UUCP (Kevin Buchs) (02/07/88)
I would like to define a logical such that it could be used to refer to a specific directory and could be used to refer to sub-directories of that directory ( by appending on the [sub-dir] ). We are at VMS 4.5. If I define a logical as node::disk:[directory] then there is no way to refer to subdirectories. If I instead define the logical as node::disk:[directory.] (notice the trailing dot) then this logical does allow [sub-directory] to be appended. It however cannot be used without appending a subdirectory, and there is no way to append a null subdirectory. I started playing with logical lists in an effort at solving my problem. I noticed some strange behavior. Here is the transcript of what I did: $ sho log log1 "LOG1" = "USER$DISK:[BUCHS.]" (LNM$PROCESS_TABLE) = "USER$DISK:[BUCHS]" $ sho log log2 "LOG2" = "USER$DISK:[BUCHS]" (LNM$PROCESS_TABLE) = "USER$DISK:[BUCHS.]" $ dir log1 Directory USER$DISK:[BUCHS] .CSHRC;1 AN.DIR;1 APOLLO.DIR;1 BIN.DIR;1 ... ... XX.COM;1 ZLS.DIR;1 Total of 110 files. $ dir log1:[spike] Directory USER$DISK:[BUCHS.][SPIKE] .CMSRC;1 BUFFER.MAC;1 CMS.DIR;1 DEMO.DAT;4 ... ... STIM5.WAV;1 STUB.COM;4 STUB.COM;3 STUB.DIR;1 %DIRECT-E-OPENIN, error opening LOG1:[SPIKE] as input -RMS-F-DIR, error in directory name TEQ.C;2 TEQ.C;1 Total of 90 files. $ dir log1:[spike][.spike] %DIRECT-E-OPENIN, error opening LOG1:[.SPIKE] as input -RMS-F-DIR, error in directory name $ dir log2:[spike] %DIRECT-E-OPENIN, error opening LOG2:[SPIKE] as input -RMS-F-DIR, error in directory name $ dir log2:[.spike] %DIRECT-E-OPENIN, error opening LOG2:[.SPIKE] as input -RMS-F-DIR, error in directory name Notice the output from : dir log1:[spike]? The error message comes out in the middle of the first directory listing. Is a VAX 785 really a parallel machine? The logical log1 seems to be somewhat of a solution to my problem, but I need to get rid of the error message. If anyone has any good ideas on this please let me know. -- Kevin Buchs 3900 Northwoods Dr. Arden Hills, MN 55112 (612)490-2548 Zycad Corp. pwcs!zycad!kjb
scjones@sdrc.UUCP (Larry Jones) (02/09/88)
In article <722@zycad.UUCP>, kjb@zycad.UUCP (Kevin Buchs) writes:
<
< If I define a logical as node::disk:[directory] then there is no way to
< refer to subdirectories. If I instead define the logical as
< node::disk:[directory.] (notice the trailing dot) then this logical does
< allow [sub-directory] to be appended. It however cannot be used without
< appending a subdirectory, and there is no way to append a null subdirectory.
Au contraire (forgive my spelling if incorrect) - there is a way to append a
null subdirectory. Just use [000000] like you would on a real disk.
< $ dir log1:[spike]
<
< Directory USER$DISK:[BUCHS.][SPIKE]
<
< .CMSRC;1 BUFFER.MAC;1 CMS.DIR;1 DEMO.DAT;4
< ...
< ...
< STIM5.WAV;1 STUB.COM;4 STUB.COM;3 STUB.DIR;1
< %DIRECT-E-OPENIN, error opening LOG1:[SPIKE] as input
< -RMS-F-DIR, error in directory name
< TEQ.C;2 TEQ.C;1
<
< Total of 90 files.
<
< Notice the output from : dir log1:[spike]? The error message
< comes out in the middle of the first directory listing. Is a VAX 785 really
< a parallel machine?
Nope. I SPRed this a long time ago but DEC doesn't consider it enough of a
problem to bother fixing. The output of the DIRECTORY command is buffered
and they don't bother to flush the buffer before printing error messages so
you get the message in the middle of your listing. You can usually get the
same effect from $ DIRECTORY DISK:[*...] as you run into directories where
you don't have read permission.
--
----
Larry Jones UUCP: uunet!sdrc!scjones
SDRC MAIL: 2000 Eastman Dr., Milford, OH 45150
AT&T: (513) 576-2070
"When all else fails, read the directions."jeh@crash.cts.com (Jamie Hanrahan) (02/10/88)
In article <722@zycad.UUCP> kjb@zycad.UUCP (Kevin Buchs) writes: >I would like to define a logical such that it could be used to refer to a >specific directory and could be used to refer to sub-directories of that >directory ( by appending on the [sub-dir] ). We are at VMS 4.5. > >... If I define the logical as >node::disk:[directory.] (notice the trailing dot) then this logical does >allow [sub-directory] to be appended. It however cannot be used without >appending a subdirectory, and there is no way to append a null subdirectory. Well, actually, there is, though it's not obvious how. You just use [000000] after the logical that specifies the root. For example, try $ DIRE SYS$SYSROOT:[000000] You'll get a directory of [SYS0], or [SYS1], or whatever SYS$SYSROOT points to on your node.
dave@wsccs.UUCP (VAX Headroom @ The End of the Galaxy) (02/18/88)
In article <722@zycad.UUCP>, kjb@zycad.UUCP (Kevin Buchs) writes: > > If I define a logical as node::disk:[directory] then there is no way to > refer to subdirectories. If I instead define the logical as > node::disk:[directory.] (notice the trailing dot) then this logical does > allow [sub-directory] to be appended. It however cannot be used without > appending a subdirectory, and there is no way to append a null subdirectory. $ define x node::disk:[directory.] /translate=conceiled $ dir x:[000000] will give you the top directory. I like to refer to logical names defined the way x above is as "fake devices" since they will appear to be a device in directory listings and they act like devices. 000000 is how you get THE root directory on a disk like dir $disk1:[000000]. We used to have $disk1 defined as sys$sysdevice:[disk1.]/trans=conc when we had one disk drive and put our users there. When we got a new disk drive we redefined $disk1 to be dub0:/trans=conc and did a copy sys$sysdevice:[*...] $disk1:[...] and it worked fine. No changes to the authorize records were necessary. Anyway, 000000 is equivalent to the "root" directory on a "device", or, if you prefer, a null directory. you may occasionally see outputs from these types of things as dua0:[disk1.][000000] or dua0:[disk1.][user1.c] Also, this only works once, you can't have define x dua0:[disk1.]/trans=conc define y x:[xyz.]/trans=conc as the result of dir y:[a] would be (internally) dir dua0:[disk1.][xyz.][a] and VMS wont buy this. (at least the last time I tried it.) Also, using "fake devices" it is possible to get directories more than eight levels deep. +-----------------------------------------------------------------------------+ | | Dave E Martin | DISCLAIMER: Been Cancelled | | /\ | "...between the streets of | $ opinion/mine/noUinTech | | / \ . /\ | Dallas, and the beaches of |----------------------------| | / \/ \/\/ \ | Miami ... THIS was Max | ...!ihnp4!utah-cs!utah-gr! | | / U i n T e c h \ | Headroom's finest hour." | uplherc!sp7040!obie! | | | --Max Headroom | wsccs!net23.dnet!dave | +-----------------------------------------------------------------------------+