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Re: "here strings" and tmpfiles


From: Chet Ramey
Subject: Re: "here strings" and tmpfiles
Date: Fri, 22 Mar 2019 10:01:50 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.5.3

On 3/19/19 8:25 AM, Greg Wooledge wrote:
> On Mon, Mar 18, 2019 at 05:18:10PM -0400, Daniel Kahn Gillmor wrote:
>>     strace -o tmp/bash.herestring.strace -f bash -c 'cat <<<"hello there"'
>> It turns out that this creates a temporary file, actually touching the
>> underlying filesystem:
> 
> Yes, just like here documents do.  And have always done, in all shells.

Not quite all shells. Historical shells, yes, and many modern shells. The
ash-derived shells use pipes.

Chet

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



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