Re: Different variable assignments

From	Frank Winkler <usenet@f.winkler-ka.de>
Newsgroups	comp.unix.shell
Subject	Re: Different variable assignments
Date	2024-10-12 17:57 +0200
Message-ID	<lmvkisF860uU2@mid.individual.net> (permalink)
References	(2 earlier) <lmta1jFsvc0U1@mid.individual.net> <vecl6n$d0r$1@dont-email.me> <lmuniuF632tU1@mid.individual.net> <vedlc2$4vi6$1@dont-email.me> <vedofj$5g3v$1@dont-email.me>

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On 12.10.2024 14:01, Lem Novantotto wrote:

  >Waiting for his clarification, I'm thinking that he sees that something
  >like:
  >
  >$ input=$(tty) && echo 123456789 | tee $input | grep -o 456 | \
  >  tee $input | read myvar && echo "myvar is $myvar"; input= ; myvar=
  >123456789
  >456
  >myvar is
  >
  >doesn't work

I think you're right. But why doesn't it work in ksh?

  > while of course:
  >
  >$ input=$(tty) && read myvar < <( echo 123456789 | tee $input | \
  >  grep -o 456 | tee $input ) && echo "myvar is $myvar"; input= ; myvar=
  >123456789
  >456
  >myvar is 456
  >
  >does work (BTW: here I'm in Bash).

I'm still thinking about the difference between "< <(...)" and "<<< `...`"

And I would be happy with this one if there was a notation "the other 
way round" ;) ... something like "... >>> $var"

Regards

	fw

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Thread

Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-11 20:11 +0200
  Re: Different variable assignments John-Paul Stewart <jpstewart@personalprojects.net> - 2024-10-11 14:27 -0400
    Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-11 20:45 +0200
      Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-12 03:59 +0200
        Re: Different variable assignments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-12 02:26 +0000
          Re: Different variable assignments gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 10:45 +0000
            Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-19 14:25 +0200
              coprocs in bash & ksh (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 13:39 +0000
                Re: coprocs in bash & ksh (Was: Different variable assignments) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-19 15:57 +0200
        Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-12 09:42 +0200
          Re: Different variable assignments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-12 07:51 +0000
          Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-12 13:08 +0200
            Re: Different variable assignments Lem Novantotto <Lem@none.invalid> - 2024-10-12 12:01 +0000
              Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-12 17:57 +0200
                Re: Different variable assignments Lem Novantotto <Lem@none.invalid> - 2024-10-12 17:09 +0000
                lastpipe (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 11:47 +0000
                Re: lastpipe (Was: Different variable assignments) Lem Novantotto <Lem@none.invalid> - 2024-10-19 12:53 +0000
                Re: Different variable assignments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-12 21:32 +0000
                Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-12 23:47 +0200
                Re: Different variable assignments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-12 21:50 +0000
                Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-12 23:56 +0200
                Re: Different variable assignments Lem Novantotto <Lem@none.invalid> - 2024-10-12 23:07 +0000
                Re: Different variable assignments Lem Novantotto <Lem@none.invalid> - 2024-10-12 23:10 +0000
                Re: Different variable assignments Lem Novantotto <Lem@none.invalid> - 2024-10-12 23:39 +0000
                Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-15 13:46 +0200
                Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-24 11:30 +0200
                Re: Different variable assignments gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-24 11:21 +0000
                Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-24 23:43 +0200
                Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-25 06:57 +0200
                Re: Different variable assignments Lem Novantotto <Lem@none.invalid> - 2024-10-24 22:45 +0000
                tee with no args is a no-op (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-25 07:10 +0000
                Re: tee with no args is a no-op (Was: Different variable assignments) Lem Novantotto <Lem@none.invalid> - 2024-10-25 08:57 +0000
            Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-12 17:49 +0200
        lastpipe (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 11:50 +0000
  Re: Different variable assignments Helmut Waitzmann <nn.throttle@xoxy.net> - 2024-10-11 22:20 +0200
    Re: Different variable assignments Frank Winkler <usenet@f.winkler-ka.de> - 2024-10-11 22:50 +0200
      Re: Different variable assignments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-11 21:03 +0000
        Re: Different variable assignments gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 11:45 +0000
          Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-19 14:52 +0200
            coproc or whatever in bash and ksh (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 13:35 +0000
              Re: coproc or whatever in bash and ksh (Was: Different variable assignments) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-19 15:54 +0200
                Re: coproc or whatever in bash and ksh (Was: Different variable assignments) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-19 16:11 +0200
                Re: coproc or whatever in bash and ksh (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 14:52 +0000
            Re: Different variable assignments Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-19 21:42 +0000
              Re: Different variable assignments gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-19 22:56 +0000
                Re: Different variable assignments Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-20 07:09 +0200
                coprocs - again (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-20 09:12 +0000
                Re: coprocs - again (Was: Different variable assignments) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-25 06:26 +0200
                Re: coprocs - again (Was: Different variable assignments) Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-10-25 04:35 +0000
                Re: coprocs - again (Was: Different variable assignments) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-25 07:03 +0200
                Subjective "valuations" are all we have (Was: coprocs - again (Was: Different variable assignments)) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-25 08:10 +0000
                Re: Subjective "valuations" are all we have (Was: coprocs - again (Was: Different variable assignments)) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-25 11:32 +0200
                Re: Subjective "valuations" are all we have (Was: coprocs - again (Was: Different variable assignments)) Lem Novantotto <Lem@none.invalid> - 2024-10-25 11:15 +0000
                Re: Subjective "valuations" are all we have (Was: coprocs - again (Was: Different variable assignments)) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-25 12:54 +0000
                Re: Subjective "valuations" are all we have (Was: coprocs - again (Was: Different variable assignments)) Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-10-26 16:20 +0200
                Re: coprocs - again (Was: Different variable assignments) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-25 07:06 +0000
                How to do multiple concurrent coprocs in ksh (Was: coprocs - again (Was: Different variable assignments)) gazelle@shell.xmission.com (Kenny McCormack) - 2024-10-25 07:05 +0000
      Re: Different variable assignments Christian Weisgerber <naddy@mips.inka.de> - 2024-10-11 23:25 +0000
    Re: Different variable assignments gazelle@shell.xmission.com (Kenny McCormack) - 2024-11-15 10:58 +0000
      Re: Different variable assignments Lem Novantotto <Lem@none.invalid> - 2024-11-16 00:07 +0000

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