Reading files backwards

[LiangTyan Fui]

On 4/22/02 10:27 PM, shop wrote:

> I have found that referring to files as URLs is a beautiful thing because it
> allows you to refer to a file as if it were a variable which means you can
> use all your chunk expressions on it.  Sooo, try
> 
> put the last line of url "file:blabla.txt" into r

Not sure with the latest 2.4.2 released, but put-url-file is RAM based.
You'll probably run out of memory (and slow too) when opening a 30-40 MB
file.

Regards,
LiangTyan Fui

> The only exception I've found to my opening statement is that delete doesn't
> seem to work with URLs.  I.E. delete the last line of url "file:blabla.txt"
> returns an error.
> 
> Rich
> Payne Sparkman Mfg.
> shop at paynesparkman.com
> 
> ----- Original Message -----
> From: <xbury.cs at clearstream.com>
> To: <metacard at lists.runrev.com>
> Sent: Monday, April 22, 2002 7:54 AM
> Subject: Reading files backwards
> 
> 
>> Hi Gang,
>> 
>> Got a problem which may help others if there is a solution...
>> I need to read the very last line from a file that's 3 - 20MBs large...
>> So I tried:
>> 
>> open file blabla for reading
>> read from file blabla for -100
>> put the result into r
>> put it into x
>> close file blabla
>> 
>> Unfortunately I never got an answer back, MC crashed...
>> No result, no error...
>> 
>> I dont want to resort to external programs (tail.exe) to do this...
>> Does anyone have a standard scripted solution?
>> 
>> Thanks in advance
>> Xavier
>> 
>> 
>> 
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