* [9fans] rc script question
@ 2013-02-27 15:41 Steve Simon
2013-02-27 15:53 ` Charles Forsyth
2013-02-27 16:06 ` dexen deVries
0 siblings, 2 replies; 4+ messages in thread
From: Steve Simon @ 2013-02-27 15:41 UTC (permalink / raw)
To: 9fans
Hi,
rc is not working how I expect it to.
This works fine
echo a b c | rc -c 'a=`{read}; echo @ $a(2-) @'
@ b c @
This i did not expect
echo a b c | rc -c 'echo @ $(2-) @'
@ @
Perhaps I need some expectation managment?
-Steve
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [9fans] rc script question
2013-02-27 15:41 [9fans] rc script question Steve Simon
@ 2013-02-27 15:53 ` Charles Forsyth
2013-02-27 16:06 ` dexen deVries
1 sibling, 0 replies; 4+ messages in thread
From: Charles Forsyth @ 2013-02-27 15:53 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
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i assumed you wanted a b c as command line arguments in the second case,
not echoed in.
in the first case, you indexed a variable. in the second case, you indexed
nothing.
% rc -c 'echo @ $*(2-) @' a b c
@ b c @
On 27 February 2013 15:41, Steve Simon <steve@quintile.net> wrote:
> Hi,
>
> rc is not working how I expect it to.
>
> This works fine
> echo a b c | rc -c 'a=`{read}; echo @ $a(2-) @'
> @ b c @
>
> This i did not expect
> echo a b c | rc -c 'echo @ $(2-) @'
> @ @
>
> Perhaps I need some expectation managment?
>
> -Steve
>
>
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^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [9fans] rc script question
2013-02-27 15:41 [9fans] rc script question Steve Simon
2013-02-27 15:53 ` Charles Forsyth
@ 2013-02-27 16:06 ` dexen deVries
2013-03-01 10:28 ` Yaroslav
1 sibling, 1 reply; 4+ messages in thread
From: dexen deVries @ 2013-02-27 16:06 UTC (permalink / raw)
To: Fans of the OS Plan 9 from Bell Labs
On Wednesday 27 of February 2013 15:41:58 Steve Simon wrote:
> This i did not expect
> echo a b c | rc -c 'echo @ $(2-) @'
> @ @
rc -c 'shift; echo @ $* @' `{echo a b c}
surprisingly, * can be assigned to.
echo a b c | rc -c '*=`{read}; shift; echo @ $* @'
echo a b c | rc -c '*=`{read}; echo @ $*(2-) @'
--
dexen deVries
[[[↓][→]]]
^ permalink raw reply [flat|nested] 4+ messages in thread
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2013-02-27 15:41 [9fans] rc script question Steve Simon
2013-02-27 15:53 ` Charles Forsyth
2013-02-27 16:06 ` dexen deVries
2013-03-01 10:28 ` Yaroslav
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