04-28-2014
Hi Alister...
The "set" version is just, WOW.
I have no idea how that works at the moment but studying it now and will until I do...
This may take weeks, LOL!
EDIT:
After reading it a couple of times and inside a couple of minutes I see how it works...
Boy do I learn a lot off of you guys... ;o)
9 More Discussions You Might Find Interesting
1. AIX
How to replace many numbers with one number in a file.
Many numbers like 444565,454678,443298,etc. i want to replace these with one number (300).Please halp me out. (2 Replies)
Discussion started by: vpandey
2 Replies
2. Programming
Hi all,
I need to change the source port number of an outgoing TCP packet. First I have to bind the socket to a particular port(suppose 9001) but when I send the TCP packet I want to change the source port number lets say to 9002 still letting the socket to be bound to the same old port (9001).... (0 Replies)
Discussion started by: anuragrai134
0 Replies
3. UNIX for Dummies Questions & Answers
Hi,
My requirement is I have an input file with a continuous series from 10000 to 99999. I have some numbers missing from those series. I want a output file which produces those missing numbers.
Eg: 10002, 99999 are missing from the series then the output file should contain those... (4 Replies)
Discussion started by: rakeshbharadwaj
4 Replies
4. Shell Programming and Scripting
Hello All,
I am having problem to find what is the smallest number from 90% of highest numbers from all numbers in file. I am having file with thousands of lines and hundreds of columns.
I am familiar mainly with bash but I am open to whatever suggestion witch will lead to the solutions.
If I... (11 Replies)
Discussion started by: Apfik
11 Replies
5. Shell Programming and Scripting
out of a range of numbers, how can i pick out the number that is the closest to any arbitrary/random number that a user supplies?
say the range of numbers are between 1 - 90000. but that doesn't mean each number exist between 1 - 90000. the range of numbers could be for example:
1, 3, 4, 6,... (6 Replies)
Discussion started by: SkySmart
6 Replies
6. Shell Programming and Scripting
Hi All,
I am stuck with this problem.
I have some 100000 (.dat) 1.dat, 2.dat,3.dat etc until 100000.dat files which look like this:
1.dat
1
2
3
4
0.99
4.54
All my files 1.dat until 100000.dat look the same but with different numbers.
I have to first add all the numbers in each... (1 Reply)
Discussion started by: shoaibjameel123
1 Replies
7. Shell Programming and Scripting
Hi,
I want to remove the following code from Source files (or replace the code with empty.) from all the source files in given directory.
finally {
if (null != hibernateSession && hibernateSession.isOpen()) {
//hibernateSession.close();
}
}
It would be great if the script has... (2 Replies)
Discussion started by: hareeshram
2 Replies
8. Shell Programming and Scripting
Hi, I have a list.txt file with number ranges and want to print/save new all.txt file with all the numbers and between the numbers.
== list.txt ==
65936
65938
65942 && 65943
65945 ... (7 Replies)
Discussion started by: AK47
7 Replies
9. Shell Programming and Scripting
Hi Guys,
how to count number of files successfully copied while coping files from source to destination path
ex:10 files from source to target location copying
if 8 files copied successfully then
echo successfully copied=8
failure=2 files
if two files get error to coping files from... (23 Replies)
Discussion started by: sravanreddy
23 Replies
LEARN ABOUT SUSE
pdl::philosophy
PHILOSOPHY(1) User Contributed Perl Documentation PHILOSOPHY(1)
NAME
PDL::Philosophy -- what's behind PDL?
DESCRIPTION
This is an attempt to summarize some of the common spirit between pdl developers in order to answer the question "Why PDL"? If you are a
PDL developer and I haven't caught your favorite ideas about PDL, please let me know!
An often-asked question is: Why not settle for some of the existing systems like Matlab or IDL or GnuPlot or whatever?
Major ideas
The first tenet of our philosophy is the "free software" idea: software being free has several advantages (less bugs because more people
see the code, you can have the source and port it to your own working environment with you, ... and of course, that you don't need to pay
anything).
The second idea is a pet peeve of many: many languages like matlab are pretty well suited for their specific tasks but for a different
application, you need to change to an entirely different tool and regear yourself mentally. Not to speak about doing an application that
does two things at once... Because we use Perl, we have the power and ease of perl syntax, regular expressions, hash tables etc at our
fingertips at all times. By extending an existing language, we start from a much healthier base than languages like matlab which have
grown into existence from a very small functionality at first and expanded little by little, making things look badly planned. We stand by
the Perl sayings: "simple things should be simple but complicated things should be possible" and "There is more than one way to do it"
(TIMTOWTDI).
The third idea is interoperability: we want to be able to use PDL to drive as many tools as possible, we can connect to OpenGL or Mesa for
graphics or whatever. There isn't anything out there that's really satisfactory as a tool and can do everything we want easily. And be
portable.
The fourth idea is related to PDL::PP and is Tuomas's personal favorite: code should only specify as little as possible redundant info. If
you find yourself writing very similar-looking code much of the time, all that code could probably be generated by a simple perl script.
The PDL C preprocessor takes this to an extreme.
Minor goals and purposes
We want speed. Optimally, it should ultimately (e.g. with the Perl compiler) be possible to compile PDL::PP subs to C and obtain the top
vectorized speeds on supercomputers. Also, we want to be able to calculate things at near top speed from inside perl, by using dataflow to
avoid memory allocation and deallocation (the overhead should ultimately be only a little over one indirect function call plus couple of
ifs per function in the pipe).
We want handy syntax. Want to do something and cannot do it easily? Tell us about it...
We want lots of goodies. A good mathematical library etc.
AUTHOR
Copyright(C) 1997 Tuomas J. Lukka (lukka@fas.harvard.edu). Redistribution in the same form is allowed but reprinting requires a permission
from the author.
perl v5.12.1 2009-10-17 PHILOSOPHY(1)