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bug#27942: Bug regarding "touch" command

From: L A Walsh
Subject: bug#27942: Bug regarding "touch" command
Date: Fri, 04 Aug 2017 02:04:45 -0700
User-agent: Thunderbird

Paul Eggert wrote:
L A Walsh wrote:
"Touching the 'file' associated with stdout"?

Yes, that's it.

How would I (or someone) use it?

You run "touch -". Whatever file stdout happens to be associated with, gets touched. It's the same idea as "cat -", except with stdout rather than stdin.

The difference between that and updating due to write activity being
mostly that ctime is also written?

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