10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have the following dataset.
A 2 1 272
A 2 2 333
A 2 3 222
A 3 1 222
A 3 2 11
B 1 1 112
B 1 2 998
B 2 1 667
C 1 1 887
C 1 2 887
C 2 1 998
I need to have an associate array based on the first column and generate a auto generated number column in the last column.
Needed output:... (2 Replies)
Discussion started by: mitt
2 Replies
2. UNIX for Dummies Questions & Answers
Hi guys
Let me explain at first what I'm trying to do. My input file looks like this.
1280
Surfaces
Pt 0.00000000000000 0.00000000000000 0.00000000000000
Pt 2.81138845918055 0.00000000000000 0.00000000000000
Pt 5.62277691836110 0.00000000000000 ... (5 Replies)
Discussion started by: saleheen
5 Replies
3. Shell Programming and Scripting
I have an associative array named table
declare -A table
table="fruit"
table="veggie"
table="GT"
table="eminem"
Now say I have a variable returning the value highway
How do I find corresponding value GT ??
(this value that I find (GT in this case) is supposed to be the name of a mysql... (1 Reply)
Discussion started by: leghorn
1 Replies
4. Shell Programming and Scripting
I have the following code, and I am changing it to
#!/bin/bash
hasArgumentCModInfile=0
hasArgumentSrcsInfile=0
hasArgumentRcvsInfile=0
OLDIFS="$IFS"
IFS="|=" # IFS controls splitting. Split on "|" and "=", not whitespace.
set -- $* # Set the positional... (3 Replies)
Discussion started by: kristinu
3 Replies
5. Programming
if i declare both but don't input any variables what values will the int array and file pointer array have on default, and if i want to reset any of the elements of both arrays to default, should i just set it to 0 or NULL or what? (1 Reply)
Discussion started by: omega666
1 Replies
6. Shell Programming and Scripting
Hello,
i'm writing a little script that checks a .txt file for a specific ID that came after 9:10 am which outputs it's data to a file LateUsers.txt
once done , it should mention the following:
Number of late users
Number of unique late users
Over all late users percentage
number of... (0 Replies)
Discussion started by: rollyah
0 Replies
7. Shell Programming and Scripting
Hi all,
#!/usr/dt/bin/dtksh
typeset -A wavelength
wavelength=650
wavelength=590
wavelength=510
wavelength=475
wavelength=445
wavelength=400
I have created an associative array like the one above.
Now I am trying to print the values
If i give print ${wavelength} it is... (4 Replies)
Discussion started by: prasperl
4 Replies
8. UNIX for Dummies Questions & Answers
About associative nature of awk arrays i'm still confused, not able to understand yet how array element can be accessed based on a string, I got one example at gawk manual to illustrate associative nature of awk arrays, it goes here:
Codeawk '
# Print list of word frequencies
{
for (i = 1;... (3 Replies)
Discussion started by: nervous
3 Replies
9. UNIX for Dummies Questions & Answers
Is it possible to say..
myArr=34
myArr=15
? (11 Replies)
Discussion started by: yongho
11 Replies
10. Shell Programming and Scripting
Hi,
I am trying to make an associative array to use in a popup_menu on a website. Here is what i have:
foreach $entr ( @entries )
{
$temp_uid = $entr->get_value(uid);
$temp_naam = $entr->get_value(sn);
$s++;
}
This is the popup_menu i want to use it in.
popup_menu(-name=>'modcon',... (4 Replies)
Discussion started by: tine
4 Replies
Perl::Critic::Policy::ValuesAndExpressions::ProhibitCommUseraContriPerl::Critic::Policy::ValuesAndExpressions::ProhibitCommaSeparatedStatements(3)
NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitCommaSeparatedStatements - Don't use the comma operator as a statement separator.
AFFILIATION
This Policy is part of the core Perl::Critic distribution.
DESCRIPTION
Perl's comma statement separator has really low precedence, which leads to code that looks like it's using the comma list element separator
not actually doing so. Conway suggests that the statement separator not be used in order to prevent this situation.
The confusion that the statement separator causes is primarily due to the assignment operators having higher precedence.
For example, trying to combine two arrays into another like this won't work:
@x = @y, @z;
because it is equivalent to
@x = @y;
@z;
Conversely, there are the built-in functions, like "print", that normally force the rest of the statement into list context, but don't when
called like a subroutine.
This is not likely to produce what is intended:
print join q{, }, 2, 3, 5, 7, ": the single-digit primes.
";
The obvious fix is to add parentheses. Placing them like
print join( q{, }, 2, 3, 5, 7 ), ": the single-digit primes.
";
will work, but
print ( join q{, }, 2, 3, 5, 7 ), ": the single-digit primes.
";
will not, because it is equivalent to
print( join q{, }, 2, 3, 5, 7 );
": the single-digit primes.
";
CONFIGURATION
This policy can be configured to allow the last statement in a "map" or "grep" block to be comma separated. This is done via the
"allow_last_statement_to_be_comma_separated_in_map_and_grep" option like so:
[ValuesAndExpressions::ProhibitCommaSeparatedStatements]
allow_last_statement_to_be_comma_separated_in_map_and_grep = 1
With this option off (the default), the following code violates this policy.
%hash = map {$_, 1} @list;
With this option on, this statement is allowed. Even if this option is off, using a fat comma "=>" works, but that forces stringification
on the first value, which may not be what you want.
BUGS
Needs to check for "scalar( something, something )".
AUTHOR
Elliot Shank "<perl@galumph.com>"
COPYRIGHT
Copyright (c) 2007-2011 Elliot Shank.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license
can be found in the LICENSE file included with this module.
perl v5.16.3 Perl::Critic::Policy::ValuesAndExpressions::ProhibitCommaSeparatedStatements(3)