Folks,
I have a bit of an issue trying to obtain some data from a csv file using PERL. I can sort the file and remove any duplicates leaving only 4 or 5 rows containing data. My problem is that the data contained in the original file contains a lot more columns and when I try ro run this script... (13 Replies)
Hi,
I have a .csv file which contains script names, subjects and email_addresses
The first two colums are always script name and subject, the next 20 colums are email address..
What i want to do is sort the email address in alphabetical order for each row and there's around 1200 rows.
So... (3 Replies)
Hi all,
in my csv file it'll look like this, and of course it may have more columns
US to UK;abc-hq-jcl;multimedia
UK to CN;def-ny-jkl;standard
DE to DM;abc-ab-klm;critical
FD to YM;la-yr-tym;standard
HY to MC;la-yr-ytm;multimedia
GT to KJ;def-ny-jrt;critical
I would like to group... (4 Replies)
Hi,
Please help me to solve sorting in CSV file.
I have 25 columns in my CSV. (Delimiter is ",")
Summary columns are from 10 to 13 which are should not be sorted. From 1-9 and 14-25 should be able to sort in ascending. how should i do this using Sort command in unix.
If no simple commands pls... (0 Replies)
Hi everyone,
i am new to perl programming, i have a problem in extracting single column from csv file. the column is the 20th column,
please help me..
at present i use this code
#!C:/perl/bin
use warnings;
use strict;
my $file1 = $ARGV;
open FILE1, "<$file1"
or die "Can't... (13 Replies)
Hi,
I have a CSV file in following manner:
server1,env1,patch1
server1,env1,patch2
server1,env1,patch3
server1,env2,patch1
server1,env2,patch3
server2,env3,patch1
server2,env3,patch5
server2,env4,patch1
server3,env6,patch1
server3,env7,patch2
server3,env7,patch3
I want to... (6 Replies)
Hello all, I am new here and *relatively* new to Unix. I have a bit of an emergency. I have a three column file that I need to sort:
sample name, miRNA, reads per million (RPM)
There are multiple samples, and for each sample name there are multiple miRNAs and associated RPMs. Some of these... (6 Replies)
Hello!
So ive been presented with this comma-delimited file:
I need a print to look as below
"
lastname, phone_number, zip
for every person with a last name starting with the letter H, I
only with a 650-area code phone number. output should be sorted by reverse ZIP code "
I only have... (5 Replies)
I have absolutaly no idea how to get this script to sort the info in Birthdays.csv by date of birth. I know the sort -n command, however i wish to sort the file birthdays.csv by DOB. How would i go about doing this?
The below script gets user info and date of birth and then puts these info a... (3 Replies)
we have a CSV which i need to convert to XML using Perl or Unix shell scripting.
I was able to build this XML in oracle database. However, SQL/XML query is running for long time. Hence, I'm considering to write a Perl or shell script to generate this XML file. Basically need to build this XML... (3 Replies)
Discussion started by: laknar
3 Replies
LEARN ABOUT REDHAT
apr::perlio
PERLIO(1) User Contributed Perl Documentation PERLIO(1)NAME
APR:PerlIO -- An APR Perl IO layer
SYNOPSIS
use APR::PerlIO ();
sub handler {
my $r = shift;
open my $fh, ">:APR", $filename, $r or die $!;
# work with $fh as normal $fh
close $fh;
return Apache::OK;
}
DESCRIPTION
"APR::PerlIO" implements a Perl IO layer using APR's file manipulation as its internals.
Why do you want to use this? Normally you shouldn't, probably it won't be faster than Perl's default layer. It's only useful when you need
to manipulate a filehandle opened at the APR side, while using Perl.
Normally you won't call open() with APR layer attribute, but some mod_perl functions will return a filehandle which is internally hooked to
APR. But you can use APR Perl IO directly if you want.
METHODS
Perl Interface:
open()
To use APR Perl IO to open a file the four arguments open() should be used. For example:
open my $fh, ">:APR", $filename, $r or die $!;
where:
the second argument is the mode to open the file, constructed from two sections separated by the ":" character: the first section is
the mode to open the file under (>, <, etc) and the second section must be a string APR.
the fourth argument can be a "Apache::RequestRec" or "Apache::ServerRec" object.
the rest of the arguments are the same as described by the open() manpage.
seek()
seek($fh, $offset, $whence);
If $offset is zero, "seek()" works normally.
However if $offset is non-zero and Perl has been compiled with with large files support ("-Duselargefiles"), whereas APR wasn't, this
function will croak. This is because largefile size "Off_t" simply cannot fit into a non-largefile size "apr_off_t".
To solve the problem, rebuild Perl with "-Uuselargefiles". Currently there is no way to force APR to build with large files support.
The C interface provides functions to convert between Perl IO and APR Perl IO filehandles.
SEE ALSO
The perliol(1), perlapio(1) and perl(1) manpages.
perl v5.8.0 2002-06-05 PERLIO(1)