[TUHS] Use of "{}" in the Shell?

Chet Ramey via TUHS tuhs at tuhs.org
Thu Aug 6 00:04:37 AEST 2026


On 8/4/26 4:35 PM, jason-tuhs--- via TUHS wrote:
> 
>> Then why does
>> echo me; echo $$
>> ( echo parens ; echo $$ ; )
>> { echo brace; echo $$ ; }
>>
>> Always echo the same pid?
> 
> This is a special case.

This is the rationale for $BASHPID.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet at case.edu    http://tiswww.cwru.edu/~chet/
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