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* [9fans] nedmail quirk
@ 2008-11-12  3:40 erik quanstrom
  2008-11-12  3:59 ` Pietro Gagliardi
  0 siblings, 1 reply; 6+ messages in thread
From: erik quanstrom @ 2008-11-12  3:40 UTC (permalink / raw)
  To: 9fans

does anyone remember why !, | and || echo follow their
output with a "!\n"?  would anyone miss this behavior?

- erik




^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [9fans] nedmail quirk
  2008-11-12  3:40 [9fans] nedmail quirk erik quanstrom
@ 2008-11-12  3:59 ` Pietro Gagliardi
  2008-11-12  4:07   ` erik quanstrom
  0 siblings, 1 reply; 6+ messages in thread
From: Pietro Gagliardi @ 2008-11-12  3:59 UTC (permalink / raw)
  To: Fans of the OS Plan 9 from Bell Labs

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On Nov 11, 2008, at 10:40 PM, erik quanstrom wrote:

> does anyone remember why !, | and || echo follow their
> output with a "!\n"?  would anyone miss this behavior?
>
> - erik
>
>

Could you give an example?
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=fH/W
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [9fans] nedmail quirk
  2008-11-12  3:59 ` Pietro Gagliardi
@ 2008-11-12  4:07   ` erik quanstrom
  2008-11-12 11:22     ` Pietro Gagliardi
  0 siblings, 1 reply; 6+ messages in thread
From: erik quanstrom @ 2008-11-12  4:07 UTC (permalink / raw)
  To: 9fans

> Hash: SHA1
>
> On Nov 11, 2008, at 10:40 PM, erik quanstrom wrote:
>
>> does anyone remember why !, | and || echo follow their
>> output with a "!\n"?  would anyone miss this behavior?
>>
>> - erik
>>
>>
>
> Could you give an example?

1: !echo true
true
!
1: 1|wc
   1929    2070  146786
!




^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [9fans] nedmail quirk
  2008-11-12  4:07   ` erik quanstrom
@ 2008-11-12 11:22     ` Pietro Gagliardi
  2008-11-12 11:58       ` erik quanstrom
  0 siblings, 1 reply; 6+ messages in thread
From: Pietro Gagliardi @ 2008-11-12 11:22 UTC (permalink / raw)
  To: Fans of the OS Plan 9 from Bell Labs

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All the programs that accept ! as a command do this:

% ed file
!echo hello
hello
!

It tells the user that execution has finished.

On Nov 11, 2008, at 11:07 PM, erik quanstrom wrote:

>> Hash: SHA1
>>
>> On Nov 11, 2008, at 10:40 PM, erik quanstrom wrote:
>>
>>> does anyone remember why !, | and || echo follow their
>>> output with a "!\n"?  would anyone miss this behavior?
>>>
>>> - erik
>>>
>>>
>>
>> Could you give an example?
>
> 1: !echo true
> true
> !
> 1: 1|wc
>   1929    2070  146786
> !
>
>

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=BSnh
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^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [9fans] nedmail quirk
  2008-11-12 11:22     ` Pietro Gagliardi
@ 2008-11-12 11:58       ` erik quanstrom
  2008-11-12 14:50         ` Dan Cross
  0 siblings, 1 reply; 6+ messages in thread
From: erik quanstrom @ 2008-11-12 11:58 UTC (permalink / raw)
  To: 9fans

> % ed file
> !echo hello
> hello
> !
>
> It tells the user that execution has finished.

this is not needed with nedmail, since nedmail
has a prompt, while ed does not.

- erik




^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [9fans] nedmail quirk
  2008-11-12 11:58       ` erik quanstrom
@ 2008-11-12 14:50         ` Dan Cross
  0 siblings, 0 replies; 6+ messages in thread
From: Dan Cross @ 2008-11-12 14:50 UTC (permalink / raw)
  To: Fans of the OS Plan 9 from Bell Labs

On Wed, Nov 12, 2008 at 6:58 AM, erik quanstrom <quanstro@quanstro.net> wrote:
> this is not needed with nedmail, since nedmail
> has a prompt, while ed does not.

Presumably at some point someone leveraged some code that looked for
'!'; is there a reason to remove it?  Oh God, somebody punch me; I'm
starting to argue against changing things simply because that's the
way they've always been.

        - Dan C.



^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2008-11-12 14:50 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-11-12  3:40 [9fans] nedmail quirk erik quanstrom
2008-11-12  3:59 ` Pietro Gagliardi
2008-11-12  4:07   ` erik quanstrom
2008-11-12 11:22     ` Pietro Gagliardi
2008-11-12 11:58       ` erik quanstrom
2008-11-12 14:50         ` Dan Cross

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