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Re: [mapfile]: problem reentrance with normal file
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From: |
Chet Ramey |
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Subject: |
Re: [mapfile]: problem reentrance with normal file |
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Date: |
Mon, 12 Nov 2018 13:05:58 -0500 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 |
On 11/12/18 10:48 AM, Didou Serge wrote:
> Ok, in this case, this should not work either:
>
> mapfile -C xx -c 1 UU < <( echo -e "Premiere ligne" A{1..45} "\nDeuxieme
> ligne" B{1..45} "\nTroisieme ligne" C{1..45})
>
> But, this form work fine.
Because the read function underlying mapfile notes that the file descriptor
is not seekable and reads only a single line at a time rather than a full
buffer of data.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/