Is there a database built into the base system
luzar722 at gmail.com
Sat Apr 8 01:33:44 UTC 2017
Karl Young wrote:
> Tomasz Rola(rtomek at ceti.pl)@2017.04.07 02:11:01 +0200:
>> On Thu, Apr 06, 2017 at 05:14:40PM -0400, Ernie Luzar wrote:
>>> inbound source ip address hits my front door. Have 3 flat text files
>>> containing about 2000 ip address having a record size of 30 bytes.
>>> I am afraid I may be approaching the max file size that csh can handle.
>>> Thinking of simple db where the 3 files are indexed and can be
>>> read/written with out sequentially process all the records. At the
>>> proof of concept stage.
>> If I had problem processing 2000 records (or 60 kilobytes) on a
>> machine less than 20 years old, I would definitely rethink my
>>> I have programmed in pear script before where I can open a file and
>>> process a record sequentially where only the next record is
>>> buffered. csh does not have that kind of file handling that I know
>>> of.ave never used it because
>>> You have any suggestions?
>> I understand you need to run this under base system (because you want
>> no ports). I guess you need to do "man awk" - it seems to be the only
>> language capable enough in such environment. Albeit if you are
>> masochist, you can stay with csh or learn sh (and sort, cut and few
>> other things).
> Ah, I thought there was perl and python in base system. If not, then I
> second the awk recommendation. Awk is powerful enough, and should be
> fast enough for what OP has described.
> But I wouldn't suggest to learn awk from man page. "The Awk Programming
> Language", written by the inventors of Awk, is a lovely book and even has
> a whole chapter on databases.
> And, it's available for free.
As the op I have been reading all the replies. I know that awk exists,
but never used it because the man page is so hard to understand. I like
this manual but this online version is hard to navigate.
Does any one know if there is a pdf version available for download?
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