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From: mrg@mame.mu.OZ.AU (matthew green)
Subject: Re: xargs and alias commands
Message-ID: <mrg.778672248@dynamo>
Sender: news@cs.mu.OZ.AU
Organization: Computer Science, University of Melbourne, Australia
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References: <33af70$8rd@usenet.INS.CWRU.Edu> <33e3kt$i1i@wombat.cssc-syd.tansu.com.au> <CHRISB.94Aug29144419@wombat.cssc-syd.tansu.com.au> <34022k$4lu@news.cerf.net> <CHRISB.94Sep2111736@wombat.cssc-syd.tansu.com.au>
Date: Sun, 4 Sep 1994 09:50:48 GMT
Lines: 66
chrisb@wombat.cssc-syd.tansu.com.au (Chris Bitmead) writes:
In article <34022k$4lu@news.cerf.net> jsm@mitekgold1 (Shane McRoberts) writes:
>Chris Bitmead (chrisb@wombat.cssc-syd.tansu.com.au) wrote:
>: I'll be the first to back up BSD in many areas, but csh would not be one
>: of them. The design flaws in csh are well documented. What is it that you
>: can do in csh that you can't do in the bourne flavoured shells?
>
>setenv. This one bugs me. Is there any way in sh/ksh/bash to set an
>exported variable in a single command? How about listing only exported
>or non-exported variables?
Well you can type:
VAR=x export VAR
which is technically one command. (Note there is no semi-colon between the
VAR=x and export VAR).
yeah, but it's redundant (not that a lot of shell stuff isn't...)
In bash and ksh you can type
export VAR=x
yup. i like that.
In standard bourne shell you can write a function:
If you like csh behaviour then enter this function:
setenv()
{
eval "$1=$2"
export "$1"
}
um, this is *not* portable sh.
setenv MYVAR xxx
env | grep MYVAR
this is not using 'sh', but rather an external 'env' program.
MYVAR=xxx
--
rockwell@nova.umd.edu (Raul Deluth Miller) writes:
export FOO=3
that is not portable sh.
sh -c 'set'
this does not separate environment and shell variables.
personally, i think all the current shells suck. i use tcsh because
i'm comfortable in it and it mostly does `what i need' (not to be
confused with `what i think i need'), but i'd rather a V7 sh to csh
anyday.
.mrg.