10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I have a complicated situational find and replace that I wrote in bash because I didn't know how to do everything in awk. The code works but is very slow, as expected.
To create my modified file, I am looping through an array that was populated earlier and making some replacements at... (6 Replies)
Discussion started by: LMHmedchem
6 Replies
2. Shell Programming and Scripting
I am trying to assign indexes to an associative array in a for loop but I have to use an eval command to make it work, this doesn't seem correct I don't have to do this with regular arrays
For example, the following assignment fails without the eval command:
#! /bin/bash
read -d "\0" -a... (19 Replies)
Discussion started by: Riker1204
19 Replies
3. Shell Programming and Scripting
I am trying to reformat the table by filling any missing rows. The final table will have consecutive IDs in the first column. My problem is the index of the associate array in the awk script.
infile:
S01 36407 53706 88540
S02 69343 87098 87316
S03 50133 59721 107923... (4 Replies)
Discussion started by: yifangt
4 Replies
4. Shell Programming and Scripting
Here's my code:
awk -F '' 'NR==FNR {
if (/time/ && $5>10)
A=$2" "$3":"$4":"($5-01)
else if (/time/ && $5<01)
A=$2" "$3":"$4-01":"(59-$5)
else if (/time/ && $5<=10)
A=$2" "$3":"$4":0"($5-01)
else if (/close/) {
B=0
n1=n2;
... (2 Replies)
Discussion started by: klane
2 Replies
5. Shell Programming and Scripting
Hi,
I am new to perl and I have the following query please help here.
I have following array variables declaration
@pld1 = qw(00 01 02 03 04 05);
@pld2 = qw(10 11 12 13 14 15);
for(my $k=1;$k<=2;$k++)
{
//I want here to use @pld1 if $k is 1
// and @pld2 if $k is 2. How to do... (3 Replies)
Discussion started by: janavan
3 Replies
6. Shell Programming and Scripting
$ cat file.txt
A|X|20
A|Y|20
A|X|30
A|Z|20
B|X|10
A|Y|40
Summing up $NF based on first 2 fields,
$ awk -F "|" 'BEGIN {OFS="|"}
{ sum += $NF }
END { for (f in sum) print f,sum }
' file.txt
o/p:
A|X|50
A|Y|60
A|Z|20 (4 Replies)
Discussion started by: uwork72
4 Replies
7. UNIX for Advanced & Expert Users
hi folks
i am facing problom while trying to access sql variable as array index ina unix shell script....script goes as below..
#!/bin/ksh
MAX=3
for elem in alpha beeta gaama
do
arr=$elem
((x=x+1))
Done
SQL_SERVER='servername'
/apps/sun5/utils/sqsh -S $SQL_SERVER -U user -P pwd -b -h... (1 Reply)
Discussion started by: sudheer157
1 Replies
8. Programming
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
Discussion started by: kmehta
4 Replies
9. UNIX for Dummies Questions & Answers
brothers why inode index starts from 1 unlike array inex which starts from 0
its a question from the design of unix operating system of maurice j.bach
i need to know the answer urgently...someone help please (1 Reply)
Discussion started by: sairamdevotee
1 Replies
10. Filesystems, Disks and Memory
why do inode indices starts from 1 unlike array indexes which starts from 0
its a question from "the design of unix operating system" of maurice j bach
id be glad if i get to know the answer quickly
:) (0 Replies)
Discussion started by: sairamdevotee
0 Replies
ARRAY(3) 1 ARRAY(3)
array - Create an array
SYNOPSIS
array array ([mixed $...])
DESCRIPTION
Creates an array. Read the section on the array type for more information on what an array is.
PARAMETERS
o $...
- Syntax "index => values", separated by commas, define index and values. index may be of type string or integer. When index is
omitted, an integer index is automatically generated, starting at 0. If index is an integer, next generated index will be the big-
gest integer index + 1. Note that when two identical index are defined, the last overwrite the first. Having a trailing comma
after the last defined array entry, while unusual, is a valid syntax.
RETURN VALUES
Returns an array of the parameters. The parameters can be given an index with the => operator. Read the section on the array type for more
information on what an array is.
EXAMPLES
The following example demonstrates how to create a two-dimensional array, how to specify keys for associative arrays, and how to skip-and-
continue numeric indices in normal arrays.
Example #1
array(3) example
<?php
$fruits = array (
"fruits" => array("a" => "orange", "b" => "banana", "c" => "apple"),
"numbers" => array(1, 2, 3, 4, 5, 6),
"holes" => array("first", 5 => "second", "third")
);
?>
Example #2
Automatic index with array(3)
<?php
$array = array(1, 1, 1, 1, 1, 8 => 1, 4 => 1, 19, 3 => 13);
print_r($array);
?>
The above example will output:
Array
(
[0] => 1
[1] => 1
[2] => 1
[3] => 13
[4] => 1
[8] => 1
[9] => 19
)
Note that index '3' is defined twice, and keep its final value of 13. Index 4 is defined after index 8, and next generated index (value
19) is 9, since biggest index was 8.
This example creates a 1-based array.
Example #3
1-based index with array(3)
<?php
$firstquarter = array(1 => 'January', 'February', 'March');
print_r($firstquarter);
?>
The above example will output:
Array
(
[1] => January
[2] => February
[3] => March
)
As in Perl, you can access a value from the array inside double quotes. However, with PHP you'll need to enclose your array between curly
braces.
Example #4
Accessing an array inside double quotes
<?php
$foo = array('bar' => 'baz');
echo "Hello {$foo['bar']}!"; // Hello baz!
?>
NOTES
Note
array(3) is a language construct used to represent literal arrays, and not a regular function.
SEE ALSO
array_pad(3), list(3), count(3), range(3), foreach, The array type.
PHP Documentation Group ARRAY(3)
