[9fans] how can I set path

[9fans] how can I set path

[流明]

it does!
 thank you very much!
  
  
 >From: John Floren <john at jfl...>
>Subject: how can I set path
>Date: Thu, 24 Mar 2011 21:36:51 -0700

>bind -b /usr/glenda/inferno/Plan9/386/bin /bin

>2011/3/24 ????????? <34261454 at qq.com>:
>> but i want to build inferno on plan9, i have to? add
>> /usr/glenda/inferno/Plan9/386/bin to my default path.
>> how can i do that?
>>
>>
>>>From: Jacob Todd <jaketodd422 at gma...>
>>>Subject: how can I set path
>>>Date: Fri, 25 Mar 2011 00:23:09 -0400
>>
>>>You don't.?  You may want read /sys/doc/9.ps.
>>
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[9fans] how can I set path

[Jacob Todd]

bind -a /usr/glenda/inferno/Plan9/386/bin /bin
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[9fans] how can I set path

[流明]

but i want to build inferno on plan9, i have to add /usr/glenda/inferno/Plan9/386/bin to my default path.
 how can i do that?
  
  
 >From: Jacob Todd <jaketodd422 at gma...>
>Subject: how can I set path
>Date: Fri, 25 Mar 2011 00:23:09 -0400

>You don't.  You may want read /sys/doc/9.ps.
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[9fans] how can I set path

[John Floren]

bind -b /usr/glenda/inferno/Plan9/386/bin /bin

2011/3/24 ?? <34261454 at qq.com>:
> but i want to build inferno on plan9, i have to?add
> /usr/glenda/inferno/Plan9/386/bin to my default path.
> how can i do that?
>
>
>>From: Jacob Todd <jaketodd422 at gma...>
>>Subject: how can I set path
>>Date: Fri, 25 Mar 2011 00:23:09 -0400
>
>>You don't.? You may want read /sys/doc/9.ps.
>

[9fans] how can I set path

[流明]

I'm new to plan9. i don't know how to set path on plan9, can you help me? thank you.
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[9fans] how can I set path

[Jacob Todd]

You don't.  You may want read /sys/doc/9.ps.
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[9fans] how can I set path

[erik quanstrom]

> I'm new to plan9. i don't know how to set path on plan9, can you help me? thank you

for the record, you can set the path.  e.g.
	path=($path /some/other/directory)
the default path is (. /bin).

jaketodd and john correctly point out that this
isn't the way it's done; bind(1) is the preferred method.
rc (the shell) is the only program that respects $path.
in fact that would be a sneeky way to run programs
from the shell that can't be exec(2)'d.

- erik

[9fans] how can I set path

[Lucio De Re]

On Fri, Mar 25, 2011 at 07:57:36AM -0400, erik quanstrom wrote:
> 
> for the record, you can set the path.  e.g.
> 	path=($path /some/other/directory)
> the default path is (. /bin).
> 
Probably because one doesn't want to bind "." to /bin for every
"." visited, not because it's a good idea.

> jaketodd and john correctly point out that this
> isn't the way it's done; bind(1) is the preferred method.
> rc (the shell) is the only program that respects $path.
> in fact that would be a sneeky way to run programs
> from the shell that can't be exec(2)'d.
> 
I read that as allowing the shell to run programs that the kernel would
reject.  I eventually understood it to mean that you can hide programs
where only the shell will find them.  Is the current directory one of
those places, I wonder?  I'm reluctant to figure it out for myself -
long day.

++L

[9fans] how can I set path

[erik quanstrom]

> I read that as allowing the shell to run programs that the kernel would
> reject.  I eventually understood it to mean that you can hide programs
> where only the shell will find them.  Is the current directory one of
> those places, I wonder?  I'm reluctant to figure it out for myself -
> long day.

try this:

	cd $home/tmp
	cat > diff
	#!/bin/rc
	echo hi!
	<EOT>
	chmod a+x diff
	history -D $somefile
	diff $somefile `{yesterday $somefile}

- erik

[9fans] how can I set path

[roger peppe]

On 25 March 2011 12:27, erik quanstrom <quanstro at quanstro.net> wrote:
>> I read that as allowing the shell to run programs that the kernel would
>> reject. ?I eventually understood it to mean that you can hide programs
>> where only the shell will find them. ?Is the current directory one of
>> those places, I wonder? ?I'm reluctant to figure it out for myself -
>> long day.
>
> try this:
>
> ? ? ? ?cd $home/tmp
> ? ? ? ?cat > diff
> ? ? ? ?#!/bin/rc
> ? ? ? ?echo hi!
> ? ? ? ?<EOT>
> ? ? ? ?chmod a+x diff
> ? ? ? ?history -D $somefile
> ? ? ? ?diff $somefile `{yesterday $somefile}
>

i always set $path to (/bin .)
it can be much faster, apart from anything else.

[9fans] how can I set path

[roger peppe]

On 25 March 2011 13:53, roger peppe <rogpeppe at gmail.com> wrote:
> i always set $path to (/bin .)
> it can be much faster, apart from anything else.

% 9fs sources
% cd /n/sources
% echo $path
/bin .
% time rc -c '{for(i in `{seq 1 100}){echo $i}}' > /dev/null
0.01u 0.09s 0.27r 	 rc -c {for(i in `{seq 1 100}){echo $i}}
% path=(. /bin)
% time rc -c '{for(i in `{seq 1 100}){echo $i}}' > /dev/null
0.00u 0.09s 12.20r 	 rc -c {for(i in `{seq 1 100}){echo $i}}
%

[9fans] how can I set path

[Zhai]

On 3?25?, ??12?22?, 34261... at qq.com (??) wrote:
> I'm new to plan9. i don't know how to set path on plan9, can you help me? thank you.

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