Path: utzoo!attcan!uunet!convex!killer!ames!pasteur!agate!bionet!apple!voder!lynx!m5
From: m5@lynx.UUCP (Mike McNally)
Newsgroups: comp.unix.wizards
Subject: Re: {} grouping in sh and ksh
Message-ID: <4552@lynx.UUCP>
Date: 5 Oct 88 23:21:57 GMT
References: <12306@steinmetz.ge.com>
Reply-To: m5@lynx.UUCP (Mike McNally)
Organization: Lynx Real-Time Systems Inc, Campbell CA
Lines: 25

In article <12306@steinmetz.ge.com> davidsen@crdos1.UUCP (bill davidsen) writes:
>  In sh, actions grouped by {} delimiters will be treated as a unit and
>may be used with &&, ||, and redirection. If redirection is used the
>commands will be executed in a subshell. After the commands have been
>run, if a subshell is not used the working directory is reset, such that
>it always works as if a subshell were used.
>  Ex:	{ cd ..; ps -l; pwd; ps -l; } && pwd

Gee, when I try the first example on my BSD machine, sure enough the
working directory is changed for the whole shell.  In other words, the
shell doesn't do any fancy switching back to the old wd.  Maybe
System V is different.








-- 
Mike McNally                                    Lynx Real-Time Systems
uucp: {voder,athsys}!lynx!m5                    phone: 408 370 2233

            Where equal mind and contest equal, go.