On Fri, Aug 04, 2000 at 11:34:07AM -0400, Subba Rao wrote:
>
> PS1='($?)\u@\h:\w =>'
> PS1='($?)`whoami`@\h:\w =>'
> In BASH, why does the "\u" and "whoami" make a big difference for
> the $? value in PS1 string? The BASH version is 2.04.
My assumption is that using whoami with the ` ` causes it to need to
reevaulate the PS1 enviroment variable every time. During the
reevaulation of PS1, it updates $? along with it. While using \u is
handled internally by the shell. $? is only evaluated when PS1 is
set.
--
Dan Nguyen | It is with true love as it is with ghosts;
[EMAIL PROTECTED] | everyone talks of it, but few have seent it.
[EMAIL PROTECTED] | -Maxime De La Rochefoucauld
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