From: | Gavan Schneider <list(dot)pg(dot)gavan(at)pendari(dot)org> |
---|---|
To: | Allie Crawford <CrawfordMA(at)ChurchofJesusChrist(dot)org> |
Cc: | pgsql-general(at)lists(dot)postgresql(dot)org |
Subject: | Re: archive_commnad parameter question |
Date: | 2021-04-19 21:16:56 |
Message-ID: | 2CE08B0E-618F-42FE-8CB4-B4F160CF42B6@pendari.org |
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Lists: | pgsql-general pgsql-hackers |
On 20 Apr 2021, at 7:09, Allie Crawford wrote:
> archive_command = 'test ! -f /mnt/server/archivedir/%f && cp %p
> /mnt/server/archivedir/%f' # Unix
>
> Does anybody know what is “test” representing in this parameter
> configuration?
>
my_unix_prompt> man test
gives:
Tests the expression given and sets the exit status to 0 if true,
and 1 if false. An expression is made up
of one or more operators and their arguments.
In other words “test” here is a unix command which evaluated the
expression supplied via the arguments.
Mostly used in its alternate form of “[ … ]” in shell scripts
Gavan Schneider
——
Gavan Schneider, Sodwalls, NSW, Australia
Explanations exist; they have existed for all time; there is always a
well-known solution to every human problem — neat, plausible, and
wrong.
— H. L. Mencken, 1920
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