Article View: net.decus
Article #310Re: Nifty feature in VMS alias mechanism
From: Daniel R. Levy
Date: Fri, 08 Aug 1986 17:44
Date: Fri, 08 Aug 1986 17:44
31 lines
1971 bytes
1971 bytes
In article <1065@jade.BERKELEY.EDU>, mwm@eris.berkeley.edu writes:
>You forgot what I considered the nicest feature of the VMS alias mechanism:
>
> $ r*edo:==<etc>
>
>will make any prefix of "redo" down to "r" valid as a redo. Similarly,
>
> $ ch*eck:==<etc>
>
>will make any prefix of "check" down to "ch" a valid as a check. Nice
>feature, that. I just wish some Unix shell (ksh, preferably) had it.
>
That might be a good idea, but you can also get this effect by using
ln to link the executable to entries by the shorter names, e.g.
ln /bin/who /bin/wh
ln /bin/crypt /bin/cryp; ln /bin/crypt /bin/cry; ln /bin/crypt /bin/cr;
(Which prompts another aside on VMS; why oh why is there a SET FILE/ENTRY
under VMS if DELETE-ing the extra entry blows away the file data itself,
leaving any other entries for that file invalid? Why isn't a link count
kept a la the UNIX (TM of AT&T) OS even if VMS doesn't have inodes?)
--
------------------------------- Disclaimer: The views contained herein are
| dan levy | yvel nad | my own and are not at all those of my em-
| an engihacker @ | ployer or the administrator of any computer
| at&t computer systems division | upon which I may hack.
| skokie, illinois |
-------------------------------- Path: ..!{akgua,homxb,ihnp4,ltuxa,mvuxa,
go for it! allegra,ulysses,vax135}!ttrdc!levy
Technical Details
Message-ID:
<1122@ttrdc.UUCP>Path:
arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!cbosgd!ihnp4!cuae2!ltuxa!ttrdc!levyReferences:
<486@batcomputer.TN.CORNELL.EDU> <1000@ttrdc.UUCP>Show Full Headers
Complete Article Headers
Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!cbosgd!ihnp4!cuae2!ltuxa!ttrdc!levy From: levy@ttrdc.UUCP (Daniel R. Levy) Newsgroups: net.decus,net.unix Subject: Re: Nifty feature in VMS alias mechanism Message-ID: <1122@ttrdc.UUCP> Date: Fri, 8-Aug-86 13:44:38 EDT Article-I.D.: ttrdc.1122 Posted: Fri Aug 8 13:44:38 1986 Date-Received: Sun, 10-Aug-86 04:48:31 EDT References: <486@batcomputer.TN.CORNELL.EDU> <1000@ttrdc.UUCP> Organization: AT&T, Computer Systems Division, Skokie, IL Lines: 31