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BASH command return value

On Fri, 4 Aug 2000, Subba Rao wrote:

> In BASH, why does the "\u" and "whoami" make a big difference for the $?
> value in PS1 string? The BASH version is 2.04.

The \u is interpreted by bash within the local process. The `whoami` runs
the "whoami" command while printing the prompt, and this updates the value
of $?. The $? in PS1 gets evaluated before the "whois" gets executed. 

John Abreau / Executive Director, Boston Linux & Unix 
ICQ#28611923 / AIM abreauj

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