function return array


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting function return array
# 1  
Old 05-05-2008
function return array

Hi all

I would like to know if there is a way to return an array for a function.
As I know function can return all the contents in an array, I want to return an array type.
# 2  
Old 05-05-2008
What scripting language?
# 3  
Old 05-05-2008
bash shell script
# 4  
Old 05-05-2008
A function can only return a return code, which is a cardinal (positive integer or zero).

However a function can modify an array held in the calling script.

Code:
$ cat function_return_array
#!/bin/bash

function myarray()
{
        a[1]=moja
        a[3]=three
}

a[1]=one
a[2]=two

myarray

echo ${a[1]}
echo ${a[2]}
echo ${a[3]}
$ ./function_return_array
moja
two
three
$

# 5  
Old 05-05-2008
so the array seems act as a globle variable,right?
if a function is called several times in the script, then I need to store it in another array before calling it again, right?
# 6  
Old 05-06-2008
That's correct.
# 7  
Old 05-06-2008
then I have another issue. how to assign an array value to another one i.e. clone?
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Function - Make your function return an exit status

Hi All, Good Day, seeking for your assistance on how to not perform my 2nd, 3rd,4th etc.. function if my 1st function is in else condition. #Body function1() { if then echo "exist" else echo "not exist" } #if not exist in function1 my all other function will not proceed.... (4 Replies)
Discussion started by: meister29
4 Replies

2. Shell Programming and Scripting

Return: can only `return' from a function or sourced script

Not sure where the problem is. I can run the script without any issue using the following command. . /opt/app/scripts/cdc_migration.sh But it fails with the below error when I try it this way /opt/app/scripts/cdc_migration.sh /opt/app/scripts/cdc_migration.sh: line 65: return: can only... (1 Reply)
Discussion started by: svajhala
1 Replies

3. Shell Programming and Scripting

Pass array to a function and display the array

Hi All I have multiple arrays like below. set -A val1 1 2 4 5 set -A val2 a b c d . . . Now i would like to pass the individual arrays one by one to a function and display/ do some action. Note : I am using ksh Can you please advise any solution... Thanks in advance. (7 Replies)
Discussion started by: Girish19
7 Replies

4. Shell Programming and Scripting

Return a value from called function to the calling function

I have two scripts. script1.sh looks -------------------------------- #!/bin/bash display() { echo "Welcome to Unix" } display ----------------------------- Script2.sh #!/bin/bash sh script1.sh //simply calling script1.sh ------------------------------ (1 Reply)
Discussion started by: mvictorvijayan
1 Replies

5. Shell Programming and Scripting

return in function

I am using ksh. I want to know how can we make any function to return string or double value. I dont want to use the global variables. (5 Replies)
Discussion started by: PRKS
5 Replies

6. Shell Programming and Scripting

return value of a function

I have write a shell function to get the maximum of a vector. However, the returned value from the function is not always the correct one. Here is the script: maxval() { local max j i size arrval size=$1 ; shift max=-999999999 i=0 while do arrval="$1" if then ... (5 Replies)
Discussion started by: fl0r10
5 Replies

7. Shell Programming and Scripting

need to return value from function

how to return value from function and print from main program??? And also I need to return true or false... Is it possible? (5 Replies)
Discussion started by: darshakraut
5 Replies

8. Shell Programming and Scripting

Return an array of strings from user defined function in awk

Hello Friends, Is it possible to return an array from a user defined function in awk ? example: gawk ' BEGIN{} { catch_line = my_function(i) print catch_line print catch_line print catch_line } function my_function(i) { print "echo" line= "awk" line= "gawk"... (2 Replies)
Discussion started by: user_prady
2 Replies

9. Programming

Function to return an array of integer

Hi all, I am trying to create a function that return an array of integer based on the char parameter pass into the function. I.e. func_a(char * str) { example str is equal to "1,2,3,4" return an array of integers of 1,2,3,4 } Please advise regards dwgi32 (2 Replies)
Discussion started by: dwgi32
2 Replies

10. Shell Programming and Scripting

return value of a function

Hi I have a doubt in the way the variables inside a function are treated . if a function is called from the main script directly, the variables inside them act as global variables. however if the return value of the function is stored to some other variable in the main script as shown,... (3 Replies)
Discussion started by: prez
3 Replies
Login or Register to Ask a Question