What I would to have is an array that contains only one of the columns: i.e.
Code:
Gender
M
F
M
M
F
As far as code goes, as far as I can get is to print every line in the file:
Code:
#!/usr/bin/perl
use warnings;
use strict;
open FILE, "data.csv", or die $!;
while (<FILE>) {
chomp;
my @arr = $_;
print "$_ \n";
}
I believe that I have to use the split() function, but i'm not sure how.
Also, I have seen lines of code that look like Tie::Hash... But I don't know what its used for.
Thanks in advance
Moderator's Comments:
Use code tags for code, please.
Last edited by Corona688; 04-12-2012 at 02:04 PM..
Push, pop, shift and unshift are instructions to handle arrays. Next program should work for your problem:
Code:
use warnings;
use strict;
die qq[There is no argument\n] if @ARGV < 1;
open my $file, qq[<], $ARGV[0] or die $!;
my @arr;
while ( <$file> ) {
## Omit header.
next if $. == 1;
## Omit blank lines.
next if m/\A\s*\Z/;
## Remove last '\n'.
chomp;
## Split fields with comma.
my @f = split /,/;
## Add third file to array.
push @arr, $f[2];
}
exit 0;
I'm having some difficulty with convincing Expect to do what I need..
I have a loop that waits for input, a specific phrase of text followed by a single word. I need Expect to capture that word following the specific phrase. It should then store the word in a variable.
I'm fairly sure it's... (6 Replies)
Hello,
I am new to shell scripting and i am trying to figure why is this not working with else statement.
I am searching for every directory in that DIR i am in, however the "else" seems to be triggered whenever the run the script..
Much thanks in advance!
#!/bin/shell
for item in... (3 Replies)
I'm trying to parse the website, finance.yahoo.com/q?s=ge&ql=1, and retrieve the info between <span id="yfs_l84_ge">18.98</span>, so 18.98.
What would be the best way to go about this in a bash script?
Any help or suggestions will be much appreciated.
Thanks! (2 Replies)
suppose my @{$data1{$callid}}; cotains
one two three
three five six
one two three
of random patterns but each item is separated by white space or tab,
Below code extract and get rid of the whitespace perfectly so that it shows now like this
onetwothree
threefivesix... (2 Replies)
I have a file with 3 digit numbers in it formatted as such:
123
065
321
How would I go about seeing if each number is less than 100 and if so outputting it to another file
Yes, I am a bit of a noob. I have tried with grep but I don't think it'll work.
Any general direction would be... (6 Replies)
Ok here is the deal, I have a command given to me by some systems guy who I cannot get ahold of on the weekend without paying him alot of money to help me. I need to get this done before Monday as I am just getting pummeled by DOS attacks. The comand given was....
netstat -ntu | awk '{print... (1 Reply)
I'm just getting started to lean C and I'm using Ubuntu today I found a tutorial at this site: http://einstein.drexel.edu/courses/CompPhys/General/C_basics/c_tutorial.html and I got an error after compiling the fist code:
#include < stdio.h>
void main()
{
printf("\nHello World\n");
} ... (9 Replies)
I have an array of hashrefs that look like the following:
my @LAYOUT = (
{SQL_1 => "select count (*) FROM prospect
WHERE PROCESS_DATE = To_date('INSERT_DATE_HERE', 'mm/dd/yyyy')
and tiff_filename is not null
... (2 Replies)
04-12-2012
