I like to define a value subroutine.
sub myvalue {
return uc($options{$_[0]}->{type} // "")
}
This particular one returns the empty string ("") if
$options{$_[0]}->{type} is undefined.
Now the sort becomes:
sort {myvalue($a) cmp myvalue($b)} keys %options
This code is unteste
> On Apr 11, 2017, at 6:13 AM, Mike Martin wrote:
>
> Hi
>
> I have the following code as an example against a hash of hashes, to sort by
> hashrf key
>
> foreach my $opt (sort {uc($options{$b}->{type}) cmp uc($options{$a}->{type})}
> keys %options){
>my $type=$options{$opt}->{vt
Hi
I have the following code as an example against a hash of hashes, to sort
by hashrf key
foreach my $opt (sort {uc($options{$b}->{type}) cmp
uc($options{$a}->{type})} keys %options){
my $type=$options{$opt}->{vtype};
$video_type->append_text($type) if defined($type)
$type, ref(code): " . ref($code);
+next TEST;
+}
+}
+}
+my $sub = eval "sub { $init (" . join(", ", @code) . ") }";
+ my $sorter = Sort::Key::multi
han Sort::Maker and also Sort::Key::Radix, even
>> faster when sorting by numeric keys but not available in Debian.
>>
>>use Sort::Key qw(ukeysort);
>>
>>my @sorted = ukeysort { /^(\d+)-(\d+)/
>> or die "bad key $_&quo
usually faster than Sort::Maker and also Sort::Key::Radix, even
>> faster when sorting by numeric keys but not available in Debian.
>>
>>use Sort::Key qw(ukeysort);
>>
>>my @sorted = ukeysort { /^(\d+)-(\d+)/
>> or die "b
On 08/23/2012 02:54 AM, Salvador Fandino wrote:
It's a pity Sort::Maker not in Debian
There is also Sort::Key, available in Debian testing and unstable, and
which is usually faster than Sort::Maker and also Sort::Key::Radix, even
faster when sorting by numeric keys but not availab
de up how you extract each key from
>> the data set and how it gets sorted (number vs string, etc.). it makes
>> sorting into a declarative problem instead of a coding problem.
>>
>> uri
>
> do'nt worry, that's what I'm
>
> Thanks a lot for
and how it gets sorted (number vs string, etc.). it makes
> sorting into a declarative problem instead of a coding problem.
>
> uri
do'nt worry, that's what I'm
Thanks a lot for forcing me to study sorting in perl.
This morning I read sort_paper[*] apparently written by some
cleaner looking.
all you need to do is code up how you extract each key from the data set
and how it gets sorted (number vs string, etc.). it makes sorting into a
declarative problem instead of a coding problem.
uri
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional comman
On 22/08/12 00:35, Uri Guttman wrote:
> On 08/21/2012 05:33 PM, Eduardo wrote:
>> On 21/08/12 22:05, Chris Stinemetz wrote:
>>> Hello List,
>>>
>>> I am trying to sort a hash of arrays ( example below: )
>>>
>>> I would the sort to sort in ascending order the first index of the
>>> array
>>> then
On 08/21/2012 05:33 PM, Eduardo wrote:
On 21/08/12 22:05, Chris Stinemetz wrote:
Hello List,
I am trying to sort a hash of arrays ( example below: )
I would the sort to sort in ascending order the first index of the array
then the second index of the array.
So in this example the arrays wou
On 21/08/12 22:05, Chris Stinemetz wrote:
> Hello List,
>
> I am trying to sort a hash of arrays ( example below: )
>
> I would the sort to sort in ascending order the first index of the array
> then the second index of the array.
>
> So in this example the arrays would sort to:
>
> 97,2,120,65
>
I will leave it to you to write an actual program incorporating these
> ideas.
>
> Thank you Jim for the excelent explanation.
This seems to do the trick.
foreach my $cellNo ( sort { $hash{$a}->[0] <=> $hash{$b}->[0] ||
$hash{$a}->[1] <=> $hash{$b}->[1] } keys %hash ) {
print join( "\0", @{
e array
>> then the second index of the array.
>
> I believe you mean "first element" rather than "first index". The first index
> of your array is 0, and sorting by the indices is a no-operation.
>
> What you want to do is sort the list of keys returned b
st element" rather than "first index". The first index
of your array is 0, and sorting by the indices is a no-operation.
What you want to do is sort the list of keys returned by the keys() function.
You do this by supplying a subroutine reference to the sort function that
returns a neg
On Tue, Aug 21, 2012 at 3:11 PM, Shawn H Corey wrote:
> On Tue, 21 Aug 2012 15:05:33 -0500
> Chris Stinemetz wrote:
>
> > I am trying to sort a hash of arrays ( example below: )
> >
> > I would the sort to sort in ascending order the first index of the
> > array then the second index of the array
On Tue, 21 Aug 2012 15:05:33 -0500
Chris Stinemetz wrote:
> I am trying to sort a hash of arrays ( example below: )
>
> I would the sort to sort in ascending order the first index of the
> array then the second index of the array.
What have you tried so far? Can we see the code?
--
Just my 0
Hello List,
I am trying to sort a hash of arrays ( example below: )
I would the sort to sort in ascending order the first index of the array
then the second index of the array.
So in this example the arrays would sort to:
97,2,120,65
219,1,30,33
280,3,230,90
462,2,270,65
$VAR1 = {
'
On 17/05/2012 23:19, Shawn H Corey wrote:
> On 12-05-17 05:24 PM, Chris Stinemetz wrote:
>>
>> push(@fields, $Icell,$Isect,$Ichan,$cfc,$cfcq,$rtd);
>
> # push an anonymous array for each record
> push @fields, [ $Icell,$Isect,$Ichan,$cfc,$cfcq,$rtd ];
>
>> }
>> }
>>
>>
>> my @sorted_fields = sort
On 12-05-17 05:24 PM, Chris Stinemetz wrote:
Thank you Uri and Shawn.
I am getting the following error and not sure how to resolve:
I will also checkout the great suggestions Uri made.
Can't use string ("3") as an ARRAY ref while "strict refs" in use at
./DBSRtest.pl line 51,<> line 999.
#!/
Thank you Uri and Shawn.
I am getting the following error and not sure how to resolve:
I will also checkout the great suggestions Uri made.
Can't use string ("3") as an ARRAY ref while "strict refs" in use at
./DBSRtest.pl line 51, <> line 999.
#!/usr/bin/perl
use warnings;
use strict;
use POSI
On 05/17/2012 04:52 PM, Shawn H Corey wrote:
On 12-05-17 03:36 PM, Chris Stinemetz wrote:
I would like to sort the array by
$fields[0],$fields[1],$fields[2],$fields[3],$fields[4],$fields[5] in
ascending order starting witht he first element before I print the
array.
Do you want the fields sort
On 12-05-17 03:36 PM, Chris Stinemetz wrote:
I would like to sort the array by
$fields[0],$fields[1],$fields[2],$fields[3],$fields[4],$fields[5] in
ascending order starting witht he first element before I print the
array.
Do you want the fields sorted or do you want records sorted? If you want
I have an array "@fields" that contains 6 elements.
I would like to sort the array by
$fields[0],$fields[1],$fields[2],$fields[3],$fields[4],$fields[5] in
ascending order starting witht he first element before I print the
array.
I haven't been able to figure this out. Any help is greatly apprecia
That's what the documentation says:
...
$json = $json->canonical([$enable])
"If $enable is true (or missing), then the encode method will output JSON
objects by sorting their keys. This is adding a comparatively high
overhead".
...
So I guess you'd have to use something l
d e.g.: 2012-01-20 22:24:36 value is some text
- Original Message -
From: Rajeev Prasad
To: perl list
Cc:
Sent: Sunday, February 5, 2012 10:20 PM
Subject: Re: need guidance on encode JSON and sorting
I tried below but getting err:
my $json = JSON::XS->new;
$json
Prasad
To: perl list
Cc:
Sent: Sunday, February 5, 2012 10:04 PM
Subject: need guidance on encode JSON and sorting
in the script this is all i am using JSON as:
...
use JSON::XS;
...
$return_json_text = encode_json $tmp_hash;
this variable ($return_json_text) is then used to display valu
in the script this is all i am using JSON as:
...
use JSON::XS;
...
$return_json_text = encode_json $tmp_hash;
this variable ($return_json_text) is then used to display values. I need this
to be orderd, but not able to figure how to order the outcome??? I read about
$enabled = $json->get_c
On 30/10/2011 13:20, newbie01 perl wrote:
Hi Rob,
Thanks for your response and to everyone else who had given their thoughts,
especially John. This whole exercise is turning out to be a "fun" way of
learning arrays and print formatting.
I tried the script that you suggested and it is giving som
Hi Rob,
Thanks for your response and to everyone else who had given their thoughts,
especially John. This whole exercise is turning out to be a "fun" way of
learning arrays and print formatting.
I tried the script that you suggested and it is giving some error and not
sure how to get around it. F
On 24/10/2011 21:35, John W. Krahn wrote:
>
> You forgot the part where the OP wants to sort the output. :-)
I thought I didn't have enough information to know how the OP wanted the
report sorted, but I see from the attacked shell script that the
original lines from the df output are sorted befor
Rob Dixon wrote:
**OUTPUT**
FilesystemMBytes UsedAvail Capacity
Mount
-- - -
-
/dev/md/dsk/d1 3027-MB 2424-MB 542-MB 82% /
/proc
m wanting to convert it to Perl 'coz I have a server that has 30+ lines
> of df output and it takes ages to run using Korn shell. I am hoping that
> it will run faster in Perl, John W. Krahn had proven that to be case
> lots of times, thanks John :-)
>
> Plus it is a good
On 2011-10-22 17:37, timothy adigun wrote:
my($filesys,$mbytes,$used,$avail,$capacity,$mount)=("","","","","","");
Alternative:
$_ = "" for my ( $p, $q, $r, $s );
--
Ruud
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
htt
"Learning Perl" turns out to be the 6th edition.
Oh my! I thought to myself, perhaps mine might be about
the 4th or 5th edition - alas, it is the 2nd. Start
saving...
Tx & rgds, GFStC.
On Fri, 21 Oct 2011 22:37:14 -0700
David Christensen wrote:
The canonical book for learning Perl i
On Sat, Oct 22, 2011 at 7:13 PM, Brian Fraser wrote:
> I say this without a bit of sarcasm: Feel blessed in your ignorance of
> formats. The declarations on top are unfortunately needed (If it helps,
> think of formats using lexical variables as closures).
> But you shouldn't be using formats. So
On Sat, Oct 22, 2011 at 4:57 PM, Brandon McCaig wrote:
> On Sat, Oct 22, 2011 at 11:37 AM, timothy adigun <2teezp...@gmail.com>
> wrote:
> > my($filesys,$mbytes,$used,$avail,$capacity,$mount)=("","","","","","");
>
> Declaring these variables here is useless (and initializing them
> here is even
On Sat, Oct 22, 2011 at 3:00 PM, Brandon McCaig wrote:
> http://search.cpan.org/~abarclay/Filesys-DiskFree-0.06/DiskFree.pm
I guess the proper way to post a CPAN link is with the 'permalink':
http://search.cpan.org/perldoc?Filesys::DiskFree
Regards,
--
Brandon McCaig
Castopulence Software
On Fri, Oct 21, 2011 at 10:18 PM, newbie01 perl wrote:
> At the moment am using
>
> system("df -k > /tmp/df_tmp.00");
>
> To re-direct the df output. Am using df -k because some of the Solaris and
> HP servers does not have df -h, by using df -k, am sure it will work on all
> of them.
Apparently
On Sat, Oct 22, 2011 at 11:37 AM, timothy adigun <2teezp...@gmail.com> wrote:
> my($filesys,$mbytes,$used,$avail,$capacity,$mount)=("","","","","","");
Declaring these variables here is useless (and initializing them
here is even more useless). :-/ The lack of whitespace is also
useless and makes
Hi newbie01 perl,
Try the code below and see if it works for you, it works well on my
Ultimate Ubuntu OS.
Assumptions in the code below:
1. you must pass df to the perl script on the Command Line Interface *e.g
perl mydf.pl df*,
2. you don't have Perl6::Form installed, though you can get here
h
On 10/21/2011 07:18 PM, newbie01 perl wrote:
Am trying to write/convert a customized df script...
> I've attached a version of the script in Korn shell. ...
...
[input]
Filesystemkbytesused avail capacity Mounted on
/dev/md/dsk/d1 3099287 2482045 55525782%/
/pr
rl 'coz I have a server that has 30+ lines of
df output and it takes ages to run using Korn shell. I am hoping that it
will run faster in Perl, John W. Krahn had proven that to be case lots of
times, thanks John :-)
Plus it is a good exercise to learn Perl arrays and sorting too.
Any advise/
Brandon and Jim,
Thank you for the replies. They were very helpful. I have gotten past my
blockage.
Eric
On Aug 17, 2011, at 5:22 PM, Brandon McCaig wrote:
> On Wed, Aug 17, 2011 at 5:59 PM, ERIC KRAUSE wrote:
>> The problem for me is the line endings I think. When I open the
>> file and read
Shlomi Fish wrote:
"Wagner, David --- Sr Programmer Analyst --- CFS"
wrote:
Since a \n is at end, then could use split like:
for my $dtl ( sort {$a<=> $b} split(/\n/, $a_string) ) {
One can also do split(/^/m, $a_string) to split into lines while preserving the
newlines.
It wi
On Wed, Aug 17, 2011 at 5:59 PM, ERIC KRAUSE wrote:
> The problem for me is the line endings I think. When I open the
> file and read in one line, I get the whole file. I think the
> line endings are ^p (MS paragraph markers), but I can't open
> the file to view them. The files are huge, 150M or b
On 8/17/11 Wed Aug 17, 2011 2:59 PM, "ERIC KRAUSE"
scribbled:
> Hello all,
> I am beating my head against the wall, any help would be appreciated.
>
> I have a file:
> / // / m / cvfbcbf/ A123/ / / ///
> / // / m / cvfbcbf/ A234/ / / ///
> / /
Hello all,
I am beating my head against the wall, any help would be appreciated.
I have a file:
/ // / m / cvfbcbf/ A123/ / / ///
/ // / m / cvfbcbf/ A234/ / / ///
/ // / m / cvfbcbf/ B123/ / / ///
There is spaces in the b
Hi,
On Tue, 16 Aug 2011 11:09:35 -0500
"Wagner, David --- Sr Programmer Analyst --- CFS"
wrote:
> >-Original Message-
> >From: Matt [mailto:lm7...@gmail.com]
> >Sent: Tuesday, August 16, 2011 10:04
> >To: beginners@perl.org
> >Subject: Sorting a
>-Original Message-
>From: Matt [mailto:lm7...@gmail.com]
>Sent: Tuesday, August 16, 2011 10:04
>To: beginners@perl.org
>Subject: Sorting a String
>
>I believe you can sort an array like so:
>
>sort @my_array;
>
>I need to sort a string though.
>
>
Matt wrote:
I believe you can sort an array like so:
sort @my_array;
That should be:
@my_array = sort @my_array;
I need to sort a string though.
I have $a_string that contains:
4565 line1
2345 line2
500 line3
etc.
Obviously \n is at end of every line in the string. I need it sorted.
On Tue, Aug 16, 2011 at 12:04 PM, Matt wrote:
> I believe you can sort an array like so:
>
> sort @my_array;
>
> I need to sort a string though.
>
> I have $a_string that contains:
>
> 4565 line1
> 2345 line2
> 500 line3
> etc.
>
> Obviously \n is at end of every line in the string. I need it sor
sort like string or like numbers?
On Tue, Aug 16, 2011 at 18:04, Matt wrote:
> I believe you can sort an array like so:
>
> sort @my_array;
>
> I need to sort a string though.
>
> I have $a_string that contains:
>
> 4565 line1
> 2345 line2
> 500 line3
> etc.
>
> Obviously \n is at end of every li
I believe you can sort an array like so:
sort @my_array;
I need to sort a string though.
I have $a_string that contains:
4565 line1
2345 line2
500 line3
etc.
Obviously \n is at end of every line in the string. I need it sorted.
How would I approach this?
--
To unsubscribe, e-mail: beginner
On Mon, Aug 8, 2011 at 10:10, Paul Johnson wrote:
> On Mon, Aug 08, 2011 at 09:25:48AM -0400, shawn wilson wrote:
>> On Aug 8, 2011 12:11 AM, "Ramprasad Prasad" wrote:
>> >
>> > Using the system linux sort ... Does not help.
>> > On my dual quad core machine , (8 gb ram) sort -n file takes 10
>>
On 11-08-08 10:23 AM, Shlomi Fish wrote:
I suggest splitting the files into bins. Each bin will contain the records with
the batch numbers in a certain range (say 0-999,999 ; 1,000,000-1,999,999,
etc.). You should select the bins so the numbers are spread more or less
evenly. Then you sort each b
Hi Ramprasad,
On Sun, 7 Aug 2011 20:58:14 +0530
Ramprasad Prasad wrote:
> I have a file that contains records of customer interaction
> The first column of the file is the batch number(INT) , and other columns
> are date time , close time etc etc
>
> I have to sort the entire file in order of t
On Mon, Aug 08, 2011 at 09:25:48AM -0400, shawn wilson wrote:
> On Aug 8, 2011 12:11 AM, "Ramprasad Prasad" wrote:
> >
> > Using the system linux sort ... Does not help.
> > On my dual quad core machine , (8 gb ram) sort -n file takes 10
> > minutes and in the end produces no output.
>
> I had a
On Aug 8, 2011 12:11 AM, "Ramprasad Prasad" wrote:
>
> Using the system linux sort ... Does not help.
> On my dual quad core machine , (8 gb ram) sort -n file takes 10
> minutes and in the end produces no output.
>
I had a smaller file and 32g to play with on a dual quad core (dl320). Sort
just c
On Mon, Aug 08, 2011 at 10:40:12AM +0530, Ramprasad Prasad wrote:
> Using the system linux sort ... Does not help.
> On my dual quad core machine , (8 gb ram) sort -n file takes 10
> minutes and in the end produces no output.
Did you set any other options?
At a minimum you should set -T to tell
On Sun, Aug 7, 2011 at 22:10, Ramprasad Prasad wrote:
>
[snip]
> I guess there is a serious need for re-architecting , rather than
> create such monstrous files, but when people work with legacy systems
> which worked fine when there was lower usage and now you tell then you
> need a overhaul be
Using the system linux sort ... Does not help.
On my dual quad core machine , (8 gb ram) sort -n file takes 10
minutes and in the end produces no output.
when I put this data in mysql , there is an index on the order by
field ... But I guess keys don't help when you are selecting the
entire table.
> "RP" == Rajeev Prasad writes:
RP> hi, you can try this: first get only that field (sed/awk/perl)
RP> whihc you want to sort on in a file. sort that file which i assume
RP> would be lot less in size then your current file/table. then run a
RP> loop on the main file using sorted file
On Sun, Aug 7, 2011 at 15:58, Rob Dixon wrote:
> On 07/08/2011 20:30, Shawn H Corey wrote:
>>
>> On 11-08-07 03:20 PM, shawn wilson wrote:
>>>
>>> It can be sped up (slightly) with an index.
>>
>> Indexes in SQL don't normally speed up sorti
On 07/08/2011 20:30, Shawn H Corey wrote:
On 11-08-07 03:20 PM, shawn wilson wrote:
It can be sped up (slightly) with an index.
Indexes in SQL don't normally speed up sorting. What they're best at is
selecting a limited number of records, usually less than 10% of the
total. Other
On 11-08-07 03:20 PM, shawn wilson wrote:
It can be sped up (slightly) with an index.
Indexes in SQL don't normally speed up sorting. What they're best at is
selecting a limited number of records, usually less than 10% of the
total. Otherwise, they just get in the way.
The be
On Aug 7, 2011 1:15 PM, "Paul Johnson" wrote:
>
> On Sun, Aug 07, 2011 at 08:58:14PM +0530, Ramprasad Prasad wrote:
>
> > I have a file that contains records of customer interaction
> > The first column of the file is the batch number(INT) , and other
columns
> > are date time , close time etc etc
On Sun, Aug 07, 2011 at 08:58:14PM +0530, Ramprasad Prasad wrote:
> I have a file that contains records of customer interaction
> The first column of the file is the batch number(INT) , and other columns
> are date time , close time etc etc
>
> I have to sort the entire file in order of the first
print $}' > tmp-file
sort
for id in `cat `;do grep $id >>
sorted-large-file;done
From: Ramprasad Prasad
To: Shawn H Corey
Cc: Perl Beginners
Sent: Sunday, August 7, 2011 11:01 AM
Subject: Re: Sorting an extremely LARGE file
On 7 August 2011 21:24, Shawn H Corey wrote:
>
On 2011-08-07 17:28, Ramprasad Prasad wrote:
I have a file that contains records of customer interaction
The first column of the file is the batch number(INT) , and other columns
are date time , close time etc etc
I have to sort the entire file in order of the first column .. but the
problem is
On 7 August 2011 21:24, Shawn H Corey wrote:
> On 11-08-07 11:46 AM, Ramprasad Prasad wrote:
>
>> I used a mysql database , but the order by clause used to hang the
>> process indefinitely
>> If I sort files in smaller chunks how can I merge them back ??
>>
>>
> Please use "Reply All" when respon
On 11-08-07 11:46 AM, Ramprasad Prasad wrote:
I used a mysql database , but the order by clause used to hang the
process indefinitely
If I sort files in smaller chunks how can I merge them back ??
Please use "Reply All" when responding to a message on this list.
You need two temporary files a
On 11-08-07 11:28 AM, Ramprasad Prasad wrote:
I have a file that contains records of customer interaction
The first column of the file is the batch number(INT) , and other columns
are date time , close time etc etc
I have to sort the entire file in order of the first column .. but the
problem is
I have a file that contains records of customer interaction
The first column of the file is the batch number(INT) , and other columns
are date time , close time etc etc
I have to sort the entire file in order of the first column .. but the
problem is that the file is extremely huge.
For the large
On 01/02/2011 14:02, Chris Stinemetz wrote:
#!/usr/bin/perl
use warnings;
use strict;
use IO::Handle;
RAW->format_lines_per_page(100); # I will change this once I get strict
pragma to work.
format RAW_TOP =
@|||
I bottom posted. Any help is greatly appreciated.
Chris
-Original Message-
From: Chris Stinemetz [mailto:cstinem...@cricketcommunications.com]
Sent: Tuesday, February 01, 2011 8:03 AM
To: Shlomi Fish; beginners@perl.org
Subject: RE: sorting report
Shlomi,
See far bottom for my
Shlomi,
See far bottom for my updated code.
Chris Stinemetz
-Original Message-
From: Shlomi Fish [mailto:shlo...@iglu.org.il]
Sent: Tuesday, February 01, 2011 4:18 AM
To: beginners@perl.org
Cc: Chris Stinemetz
Subject: Re: sorting report
Hi Chris,
a few comments on your code:
On
Hi Chris,
a few comments on your code:
On Tuesday 01 Feb 2011 06:43:43 Chris Stinemetz wrote:
> I would like to sort my final report in the following order:
>
> $data[31],$data[32],$data[38]
>
> How would I add this into my following program to get the report sorted
> this way?
>
> Thanks in a
I would like to sort my final report in the following order:
$data[31],$data[32],$data[38]
How would I add this into my following program to get the report sorted this
way?
Thanks in advance.
Chris
#!/usr/bin/perl
use warnings;
#use strict;
use FileHandle;
use IO::Handle;
RAW->format_lines_
> On Dec 1, 7:31 am, jwkr...@shaw.ca ("John W. Krahn") wrote:
>
> Correction:
>
> my @sorted_files_in_directory =
> map $_->[ 1 ],
> sort { $a->[ 0 ] <=> $b->[ 0 ] }
> map { ( stat "$directory_name/$_" )[ 9 ], $_ }
map { [ ( stat "$directory_name/$_" )[ 9 ], $_ ] }
>
On Wednesday 01 December 2010 16:57:07 John W. Krahn wrote:
> Amit Saxena wrote:
> > Hi all,
> > {
> >
> > next if ( ( $filename eq "." ) or ( $filename eq ".." ) );
> >
> > push ( @files_in_directory, $filename );
> >
> > }
>
> Since all you are doing is populating t
On 10-12-01 09:57 AM, John W. Krahn wrote:
Or just:
print map( "$_\n", @files_in_directory ), "\n";
print map( "$_\n", @sorted_files_in_directory ), "\n";
--
Just my 0.0002 million dollars worth,
Shawn
Programming is as much about organization and communication
as it is about coding.
John W. Krahn wrote:
Amit Saxena wrote:
my @sorted_files_in_directory;
@sorted_files_in_directory = sort { (stat($a))[9]<=> (stat($b))[9] }
If you read the documentation for readdir you will see where it says:
If you're planning to filetest the return values out of a
"readdir", you'd better
Amit Saxena wrote:
Hi all,
Hello,
The following perl program, for sorting files in a directory, without using
any OS specific command, ordered by modified timestamp is not working.
Please help.
*Perl Program*
#!perl.exe
use strict;
use warnings;
my $directory_name;
print "This pr
On 10-12-01 07:19 AM, Amit Saxena wrote:
print "Sorted listing of files in<$directory_name> directory are as follows
:-\n";
my $j;
foreach $j ( @files_in_directory )
foreach $j ( @sorted_files_in_directory )
{
print $j . "\n";
}
print "\n";
--
Just my 0.0002 million dollars w
Hi all,
The following perl program, for sorting files in a directory, without using
any OS specific command, ordered by modified timestamp is not working.
Please help.
*Perl Program*
#!perl.exe
use strict;
use warnings;
my $directory_name;
print "This program print the files in asce
On Jun 20, 1:39 am, philg...@yahoo.com (philge philip) wrote:
> hi
>
> can someone tell me how i can sort by keys from a hash (huge data) stored in
> a DB_File?
>
You might try a merge-sort - check CPAN.
Another possibility: re-write the existing DB_File
to use a DB_Tree format which by default
hi
can someone tell me how i can sort by keys from a hash (huge data) stored in a
DB_File?
thanking you
philge
Many thanks to Scott, Shawn, Paul, Jenda, and Uri. I've learned
something from each of you, and appreciate your taking the time to help!
Rick
--
To unsubscribe, e-mail: beginners-unsubscr...@perl.org
For additional commands, e-mail: beginners-h...@perl.org
http://learn.perl.org/
From: Shawn H Corey
> Jenda Krynicky wrote:
> > ST is an overkill if the extraction is simple.
> >
> > Especially if the number of items is fairly small.
> >
> > Actually if the extraction is really simple and the extracted key is
> > not so small, than ST may perform worse than an ordinary so
>-Original Message-
>From: Rick Triplett [mailto:r...@reason.net]
>Sent: Tuesday, October 13, 2009 12:09 PM
>To: Perl Beginners
>Subject: Sorting mixed alphanumerics
>
>I need to sort the keys in a hash. The keys are the question number
>and the values are the stu
SHC> that changes if the sort-field-extraction functions and whether a '<=>'
SHC> or 'cmp' appears in the sort. All the rest is just copy & paste.
and if you can't generate an ST easily enough, try Sort::Maker. it can
do that and 3 other sort styles.
Jenda Krynicky wrote:
> ST is an overkill if the extraction is simple.
>
> Especially if the number of items is fairly small.
>
> Actually if the extraction is really simple and the extracted key is
> not so small, than ST may perform worse than an ordinary sort doing
> the extraction within t
Date sent: Wed, 14 Oct 2009 11:03:13 -0400
From: Shawn H Corey
To: Rick Triplett
Copies to: Perl Beginners
Subject:Re: Sorting mixed alphanumerics
> Rick Triplett wrote:
> > I need to sort the keys in a
On Tue, Oct 13, 2009 at 11:09:09AM -0500, Rick Triplett wrote:
> I need to sort the keys in a hash. The keys are the question number and
> the values are the student's answer. A numeric sort with <=> won't work
> since retaking a missed question (say, 2) produces the new key, 2h with
> its new a
Rick Triplett wrote:
> I need to sort the keys in a hash. The keys are the question number and
> the values are the student's answer. A numeric sort with <=> won't work
> since retaking a missed question (say, 2) produces the new key, 2h with
> its new answer. A representative hash might look like
I need to sort the keys in a hash. The keys are the question number
and the values are the student's answer. A numeric sort with <=> won't
work since retaking a missed question (say, 2) produces the new key,
2h with its new answer. A representative hash might look like this
1 => b
2h => c
3
On Wed, Jul 8, 2009 at 15:09, "Alexander
Müller" wrote:
> Hi,
>
> I need an order for hash by user preferences. Because the criterion to order
> the hash entries a not numerical and not should sorted alphabetical, I tried
> following
>
>
> 3 %hashToSort = (
> 4 "a" => "one",
> 5 "b"
Hi,
I need an order for hash by user preferences. Because the criterion to order
the hash entries a not numerical and not should sorted alphabetical, I tried
following
3 %hashToSort = (
4 "a" => "one",
5 "b" => "two",
6 "c" => "three",
7 );
@keys = sort { qw(a, b, c) } (
1 - 100 of 702 matches
Mail list logo
