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How can I do it? I am trying it like this RESULT=`wget $URL`

P.S. - Also any recommended sources for learning shell scripting?

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2 Answers

up vote 3 down vote accepted

How about:

RESULT="`wget -qO- http://example.com`"
echo $RESULT

Edit: Yeah, that works.

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Why another dash after -qO? –  Ashfame Feb 10 '11 at 12:06
    
O tells it to output somewhere, - tells O to output it to the current stream. And q tells wget not to include any of its "Connecting to xxx..." information. –  Oli Feb 10 '11 at 12:12
    
What I meant was that when -q is the quiet switch & -O is used for giving the name to file where we want the output to be saved. From what I have been reading, we can write multiple switches together if all of them don't require arguments. So -qO makes sense but then what does the last dash do? –  Ashfame Feb 10 '11 at 14:32
1  
It's -O's argument. It tells it where to write the output of the download (in this case: back to the current stream). –  Oli Feb 10 '11 at 14:37
    
I got it now. Thanks a lot :) –  Ashfame Feb 10 '11 at 15:09
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The preferred way would be

result=$(wget -qO- http://example.com)
echo "$result"

(lowercase variable name, $() instead of `` and quoted expansion of the result variable).

For shell scripting with bash and/or POSIX sh, http://mywiki.wooledge.org/BashGuide is the guide to read. And there's a lot more useful resources on that wiki, and on http://wiki.bash-hackers.org/. I'm afraid most other resources on shell scripting are garbage, so it's best to stick with those two.

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Thanks for your input! Can you explain it a bit what's wrong with quotes here? –  Ashfame Feb 11 '11 at 21:39
    
@Ashfame This explains the main reason of why you should always quote expansions: mywiki.wooledge.org/Arguments –  geirha Feb 11 '11 at 22:19
    
Thanks! I have bookmarked the resources. I will learn from there. :) –  Ashfame Feb 12 '11 at 7:18
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