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- Newsgroups: comp.sys.next.sysadmin
- Path: sparky!uunet!destroyer!ubc-cs!unixg.ubc.ca!kakwa.ucs.ualberta.ca!news
- From: dave@nakiska.ucs.ualberta.ca (David Ross)
- Subject: Re: Vendors Considered Evil (Re: Perl use over NFS)
- Message-ID: <1992Aug31.155516.24977@kakwa.ucs.ualberta.ca>
- Sender: news@kakwa.ucs.ualberta.ca
- Nntp-Posting-Host: nakiska.ucs.ualberta.ca
- Organization: University Of Alberta, Edmonton Canada
- References: <2ttyzz=@rpi.edu>
- Date: Mon, 31 Aug 1992 15:55:16 GMT
- Lines: 61
-
- In article <2ttyzz=@rpi.edu> gad@eclipse.its.rpi.edu (Garance A. Drosehn)
- writes:
- > kochmar@sei.cmu.edu (John Kochmar) writes:
- > > fwp@CC.MsState.Edu (Frank Peters) writes:
- > >
- > > You've gotta be kidding, right? You're not advocating that perl be
- > > placed in /usr/bin so that scripts you pick up from who-knows-where
- > > will run without modification, right?
- > >
- > > I got the same response from someone else in private mail. Since I
- > > don't make a habit of picking up a script and running it without
- > > checking it over, I don't see changing the #! at the beginning to
- > > be that big a deal.
- >
- ..
- >
- > If I write a cool script that runs on my NeXT, I certainly don't want to
- > edit it to run on a Sun, an HP, an RS6000, or (gasp) aix370 just because
- > each platform has it's own favorite place to stuff scripting-languages
- like
- > perl. I have enough headaches without trying to keep synchronized 6
- copies
- > of every script I feel like writing, with the only difference being
- where
- > the silly interpretter lives.
-
- Okay, I'm putting on my preacher clothing... *preach on*!
-
- No no no no no. Don't put ANYTHING in /usr/{bin,etc,lib,man} - put all
- locally installed modifications in /usr/local! Don't even put symbolic
- links in /usr/bin! It's more work for you, it's confusing for the users
- when you do an upgrade and you forget to recreate a link, and it's
- completely unnecessary if you are consistent!
-
- We have something of a Sys Admin guidebook where we have agreed to certain
- conventions. One is all local additions to the system go in the
- /usr/local hiearchy. This applies to ALL vendor platforms.
-
- What I did was ensure all users have /usr/local/bin in their path and I
- modified my default .cshrc so that all new users got it as well. C
- compilers all seem to look in /usr/local/lib by default. The man pages
- are a bit trickier, but again changing the .cshrc to add /usr/local/man to
- the MANPATH environment variable has fixed that.
-
- No one has mentioned the case where you run out of room in /usr/local and
- have to put a package in say, /u0. I had to do this. Now to make the
- command findable, I did have to put a symbolic link somewhere in
- everyone's path. What did I use? Not /usr/bin! /usr/local/bin!
-
- Now when we do an upgrade, a simple "restore /usr/local" and zowie, we
- have all local mods to the system restored and no extra work to do. No one
- as ever complained since then that they can't find a particular command.
-
- Perl is not a standard UNIX distribution - don't assume it is. All perl
- scripts should start with #!/usr/local/bin/perl!
- *preach off*
- --
- David A. Ross, Programmer Analyst | dave@nakiska.ucs.ualberta.ca
- Computing and Network Services | (NeXTmail accepted)
- 352 Gen Serv Bldg, Univ of Alberta | Phone: (403) 492-9339
- Edmonton, Alberta, Canada T6G 2H1 | Fax: (403) 492-1729
-