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Selective reads from file #126745 04/08/05 05:40 PM
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goth80 Offline OP
Ameglian cow
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I'm attempting to list data stored in hash file though I want to list "names only", and not "status and name" I'd like to either retrieve even numbered lines (I know its an ugly way to get names only), or be shown a more elegant alternative to retrieve the name only lines.


Data stored in the following format:

loggedin.duderich
duderich
loggedin.liambonner
liambonner
loggedin.wythe
wythe

code used to extract data

Code:
  [color:red]

alias qlist {
  var %x = 1
  var %lines = $lines(qlist.hsh)
  while (%x <= $lines(qlist.hsh)) {
  echo -a $read(qlist.hsh,%x)
   inc %x
  }
}
 [/color]
 


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Re: Selective reads from file #126746 04/08/05 05:45 PM
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SladeKraven Offline
Hoopy frood
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Hey buddy.

Code:
alias qlist { 
  var %x = 1, %lines = $lines(qlist.hsh)  
  while (%x <= $lines(qlist.hsh)) {  
    if (loggedin* !iswm $read(qlist.hsh,%x)) echo -a $read(qlist.hsh,%x)
    inc %x  
  }
}


-Andy

Re: Selective reads from file #126747 04/08/05 05:58 PM
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goth80 Offline OP
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Hey SladeKraven smile)), you seem to always be on my "trouble tickets".. and that's a good thing. Thanks for the exceedingly fast response.

OUTSTANDING!

As expected, works flawlessly.


Whats life without a little Karma?
maddkarma[dot]com
Re: Selective reads from file #126748 04/08/05 06:10 PM
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SladeKraven Offline
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You're most welcome. smile

-Andy

Re: Selective reads from file #126749 04/08/05 08:11 PM
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Kelder Offline
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I know you wanted to do it, but you forgot a part smile

while (%x <= %lines) {

and while we're at it, why not

if (loggedin* !iswm $read(qlist.hsh,%x)) echo -a $v2


If it's a very large hash file, you'll want to look at /fopen and such, but it's probably not worth the effort in this case...

Re: Selective reads from file #126750 04/08/05 08:16 PM
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SladeKraven Offline
Hoopy frood
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I forgot we even set that var, my bad. Had I remembered yes I'd of used it in the loop, and that $v2 well I always mean to do that and always forget, nice find though.. smile

-Andy

Re: Selective reads from file #126751 04/08/05 09:36 PM
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Sigh Offline
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Another solution is using /filter:

Code:
/filter -fsx qlist.hsh . loggedin.*


Sends those lines to the status window

Re: Selective reads from file #126752 05/08/05 03:21 AM
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goth80 Offline OP
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Thanks for the input Sigh and Kelder

Hmm, and the script worked flawlessly, though now I'll work better :P And filters will be next on the study agenda considering they're less resource intensive (although duties for this snippet will be minor).

On a side note... Kelder, after reading numerous threads with you placing a "m/' in scripts, I became obsessed with finding the meaning. So I errrr, read through no less than 40 pages of regular expession tutorials including one by Sigh to find out that it meant... After discovering the meaning. Initially, I had the look of someone hit with a blunt object. Though after brief thought I was overjoyed to have leaned as much as I did searching for the meaning of it. smile)

Last edited by goth80; 05/08/05 03:24 AM.

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Re: Selective reads from file #126753 05/08/05 08:27 AM
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Kelder Offline
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I'm surely glad you only had the look of someone hit by a blunt object :tongue: