Username: Save?
Password:
Home Forum Links Search Login Register*
    News: Welcome to the TechnoWorldInc! Community!
Recent Updates
[April 24, 2024, 11:48:22 AM]

[April 24, 2024, 11:48:22 AM]

[April 24, 2024, 11:48:22 AM]

[April 24, 2024, 11:48:22 AM]

[April 03, 2024, 06:11:00 PM]

[April 03, 2024, 06:11:00 PM]

[April 03, 2024, 06:11:00 PM]

[April 03, 2024, 06:11:00 PM]

[March 06, 2024, 02:45:27 PM]

[March 06, 2024, 02:45:27 PM]

[March 06, 2024, 02:45:27 PM]

[March 06, 2024, 02:45:27 PM]

[February 14, 2024, 02:00:39 PM]
Subscriptions
Get Latest Tech Updates For Free!
Resources
   Travelikers
   Funistan
   PrettyGalz
   Techlap
   FreeThemes
   Videsta
   Glamistan
   BachatMela
   GlamGalz
   Techzug
   Vidsage
   Funzug
   WorldHostInc
   Funfani
   FilmyMama
   Uploaded.Tech
   MegaPixelShop
   Netens
   Funotic
   FreeJobsInc
   FilesPark
Participate in the fastest growing Technical Encyclopedia! This website is 100% Free. Please register or login using the login box above if you have already registered. You will need to be logged in to reply, make new topics and to access all the areas. Registration is free! Click Here To Register.
+ Techno World Inc - The Best Technical Encyclopedia Online! » Forum » THE TECHNO CLUB [ TECHNOWORLDINC.COM ] » Programming Zone » Shell Script
 bash shell script declaring/creating arrays
Pages: [1]   Go Down
  Print  
Author Topic: bash shell script declaring/creating arrays  (Read 2517 times)
Mark David
Administrator
Super Elite Member
*****



Karma: 185
Offline Offline

Posts: 1624

!!!Techno King!!!

fabulous_designer
View Profile WWW
bash shell script declaring/creating arrays
« Posted: March 16, 2007, 01:17:08 PM »


bash shell script declaring/creating arrays

The use of array variable structures can be invaluable. This recipe describes several methods for delcaring arrays in bash scripts.

The following are methods for declaring arrays:

Code:
names=( Jennifer Tonya Anna Sadie )

This creates an array called names with four elements (Jennifer, Tonya, Anna, and Sadie).

Code:
names=( "John Smith" "Jane Doe" )

This creates two array elements, each containing a space.

Code:
colors[0] = red 
colors[3] = green
colors[4] = blue

This declares three elements of an array using nonsequential index values and creates a sparse array (there are no array elements for index values 1 or 2).

Code:
filearray=( `cat filename | tr '\n' ' '`)

This example places the contents of the file filename into an array. The tr command converts newlines to spaces so that multiline files will be handled properly.

Code:
names=( "${names[@]}" "Molly" )

This example adds another element to an existing array names.

If anyone has other techniques for creating or adding to arrays, add a comment to this recipe and share the wealth!

Logged

Pages: [1]   Go Up
  Print  
 
Jump to:  

Copyright © 2006-2023 TechnoWorldInc.com. All Rights Reserved. Privacy Policy | Disclaimer
Page created in 0.125 seconds with 24 queries.