IMPORT VARIABLE(S) AND FUNCTION(S) FROM FILE

September 14th, 2006 durian Posted in Common, source | Hits: 37513 | 4 Comments »

If you have a lot of variables set in a configuration file and you need to access all those variables quickly, you can try to use

source filename

For example, you have a configuration file named /etc/vars.conf with the following content:

VAR1=hkong

VAR2=is

VAR3=leaving

function test1 {

echo $VAR3 $VAR2 $VAR1

}

You can then invoke

source /etc/vars.conf

Then the variables and function will be accessible as depicted in the following example

echo $VAR1 $VAR2 $VAR3

hkong is leaving

test1

leaving is hkong

This command is most commonly used by startup scripts to import variables

and functions

Related Posts
Help yourself in python
If your computer science student, you study IT, click with technology, python is not a snake for you. It is a scripting-...

python: writing binary file
Python is the best scripting language which I found it out perform Bash script as well as Lua. I like python's scripting...

Python: Manipulate Date and Time variables
When comes to data time related calculations, we usually calculate for time difference, for example How long is the down...

4 Responses to “IMPORT VARIABLE(S) AND FUNCTION(S) FROM FILE”

  1. mysurface Says:
    September 14th, 2006 at 5:59 pm

    (: Ya I am leaving soon.

  2. simonteh Says:
    September 14th, 2006 at 8:11 pm

    Good Job.3 months ago, it is still an idea, but just 3 months, u have realize your dream..继续努力！

  3. Hanna Moorhead Says:
    January 18th, 2011 at 5:22 am

    Advantageously, this submit is definitely the greatest on this invaluable topic. I fit in along with your explanations and can eagerly look forward to your forthcoming updates. Simply saying thanks won’t just be enough, for the great readability in your documentation. I will instantly grab your rss feed to remain abreast of any updates. Fabulous work and a variety of success in what you are promoting dealings!

  4. Pinoy Says:
    July 6th, 2011 at 2:38 am

    Thanks for posting this. It saved me hours of searching!

Leave a Reply