Re: PIPESTATUS differs from $? for compound command

[Andreas Schwab]

On Dez 09 2024, Mike Jonkmans wrote:

> So, with 'if false; then :; fi', the whole if has 0 as status, due to #1.
> The last pipeline is the 'false' command. So $PIPESTATUS = 1.

Why is `if false; then :; fi' not a pipeline?  It is a command, and the
components of a pipeline are commands.

> Both other examples, e.g. 'if false; then :; fi | true',
> are, for PIPESTATUS purposes, equivalent to: 'true | true'.

Why is `if false; then :; fi' not equivalent to `true' above?

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Andreas Schwab, schwab@linux-m68k.org
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