--- Begin Message ---
Subject: |
-f - option doesn't respond to single EOF from TTY. |
Date: |
Thu, 19 Aug 2021 17:59:53 -0700 |
User-agent: |
Roundcube Webmail/0.9.2 |
This reproduces on grep 3.1 on Ubuntu.
The command:
grep -f -
should accept a list of patterns from standard input, like this:
$ grep -f -
pat1
pat2
pat3
[Ctrl-D]
Upon receiving the EOF indication (zero byte read), the program
should immediately conclude that the list of patterns has ended,
and begin processing the input using the patterns.
This does not seem to be working. After a single Ctrl-D, grep is
still accumulating patterns:
It appears that Ctrl-D must be issued twice:
$ grep -f -
pat1
[Ctrl-D] ;; effectively ignored
pat2 ;; can add more patterns
pat3
[Ctrl-D]
[Ctrl-D] ;; OK, now we are in the matching loop.
pat3blahblah
pat3blahblah
...
Cheers ...
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--- Begin Message ---
Subject: |
Re: bug#50129: -f - option doesn't respond to single EOF from TTY. |
Date: |
Fri, 20 Aug 2021 08:25:12 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 |
On 8/19/21 5:59 PM, Kaz Kylheku wrote:
This reproduces on grep 3.1 on Ubuntu.
That's a pretty old version of grep. I cannot reproduce the problem on
Ubuntu 21.04, which has grep 3.6. So it sounds like the bug is fixed,
and you can fix your problem by upgrading to a more-recent Ubuntu version.
(Not that anyone would ever want to *use* plain "grep -f -", except
perhaps to file bug reports....)
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