06-19-2008
Arrays in bash.need help
Is it possible to delete array elements dynamically.For instance,consider an array( a b c d ) ,now can i delete array[2] (the third element 'c').So that the array becomes array(a b d)..
Thanks in advance!!
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Ok, I searched the threads a couple of times but couldn't find anything really relevant. Here's my problem, maybe you can help:
I am running version 1.14.7 of the bash shell, on Red Hat Linux. I am trying to set an array like so:
bash$> letters=(x y z)
spaces are between the letters but... (3 Replies)
Discussion started by: Kriton
3 Replies
2. Shell Programming and Scripting
Hi,
I am writing a bash shell script. I would like to execute a statement only if an array contains a specific value. For example:
array=(1 3 5 7)
I would like to execute the statement only if the value 3 is present in ${array}.
Thanks for any help,
Mike (1 Reply)
Discussion started by: msb65
1 Replies
3. Shell Programming and Scripting
hi guys,
i have the following script and when i run it i get blank lines on the screen.. i am trying to display the contents of array var..
#!/usr/bin/bash
var=`awk 'NR>20&&NR<31' try.sum | awk '{print $4}'`
echo "${var}" (1 Reply)
Discussion started by: npatwardhan
1 Replies
4. Shell Programming and Scripting
hi guys,
i wrote this script and it takes some fields from a file and puts it into three different arrays. The first array works just fine but when I try to use the second array (ARRAY1) all i get is a blank value on the screen..
this works fine..i get ARRAY value on the screen just fine
... (1 Reply)
Discussion started by: npatwardhan
1 Replies
5. Shell Programming and Scripting
hi guys,
i have an array called ARRAY which has elements in it... i am trying to assign elements of ARRAY to master_array..
i get a =: command not found error..
i=0
while
do
${master_array}=${ARRAY}
((i++))
done
is there something i am missing? (4 Replies)
Discussion started by: npatwardhan
4 Replies
6. Shell Programming and Scripting
hi i am using bash shell to perform some subraction. here is what i have:
i have a while loop and am using i as a counter.
diff= `expr ${ARRAY1} - ${ARRAY2}`
for example array1 has -0.7145 and array2 has -0.7041.
when i try the above command, i get expr: non-numeric argument. any... (6 Replies)
Discussion started by: npatwardhan
6 Replies
7. Shell Programming and Scripting
Hi all,
I have a file that contains many lines, but only a few are of my interest, so I'm cutting it with grep + awk, and the result I get is for example
line 0
line 1
line 2
line 3
line n
Now I want to store each line in an array "cell" so I can use it later calling to
${array},... (2 Replies)
Discussion started by: TuxSax
2 Replies
8. Shell Programming and Scripting
trying to sum elements in an array using bc and getopt,i have a file with names and thier vaules if the names appears 3 times i should multiply its value with 3 then find the sum of all the elements together
cat foo.txt
max 2.3
henry 3
fransis 4.5
max 2.3
henry 3
max 2.3
it should... (1 Reply)
Discussion started by: elginmulizwa
1 Replies
9. Shell Programming and Scripting
I have the following code and for some reason when I call the program using
/home/tcdata/tatsh/trunk/hstmy/bin/bash/raytrac.bash --cmod=jcdint.cmod
I get
hasArgument =
hasArgument = true
Somehow the array element is returning even though I have not chosen the option.
... (41 Replies)
Discussion started by: kristinu
41 Replies
10. Shell Programming and Scripting
Hi,
I am quite scripting illiterate and have been trying to write a bash script to compare to two files which i have populated in two seperate arrays as below and confirmed that all the files are loaded into the array.
IFS=$'\n'
filea=($(find /var/tmp/dir1 -type f -follow -print))... (12 Replies)
Discussion started by: jlykke
12 Replies
LEARN ABOUT PHP
array_count_values
ARRAY_COUNT_VALUES(3) 1 ARRAY_COUNT_VALUES(3)
array_count_values - Counts all the values of an array
SYNOPSIS
array array_count_values (array $array)
DESCRIPTION
array_count_values(3) returns an array using the values of $array as keys and their frequency in $array as values.
PARAMETERS
o $array
- The array of values to count
RETURN VALUES
Returns an associative array of values from $array as keys and their count as value.
ERRORS
/EXCEPTIONS
Throws E_WARNING for every element which is not string or integer.
EXAMPLES
Example #1
array_count_values(3) example
<?php
$array = array(1, "hello", 1, "world", "hello");
print_r(array_count_values($array));
?>
The above example will output:
Array
(
[1] => 2
[hello] => 2
[world] => 1
)
SEE ALSO
count(3), array_unique(3), array_values(3), count_chars(3).
PHP Documentation Group ARRAY_COUNT_VALUES(3)