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Old 05-20-2009, 07:07 PM   #1
btacuso
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Registered: May 2009
Posts: 32

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How to test for a range of digits?


Hi, I intend to test the equality of a variable to a range of digits or characters, something like this:

if [ "$line3" == [0-9] ]
then echo "$line3"
fi


I am aware that I could do it one at a time by not using [0-9] but it will be a longer code. Any help will be appreciated. Thanks a lot.

Last edited by btacuso; 05-20-2009 at 07:10 PM.
 
Old 05-20-2009, 07:17 PM   #2
Tinkster
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Distribution: slackware by choice, others too :} ... android.
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Hi,


Welcome to LQ!

Quote:
Originally Posted by btacuso View Post
Hi, I intend to test the equality of a variable to a range of digits or characters, something like this:

if [ "$line3" == [0-9] ]
then echo "$line3"
fi


I am aware that I could do it one at a time by not using [0-9] but it will be a longer code. Any help will be appreciated. Thanks a lot.


Close :}

Code:
if [[ "$line3" =~ [0-9] ]]; then
  echo "line3"
fi



Cheers,
Tink
 
Old 05-20-2009, 07:34 PM   #3
btacuso
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Registered: May 2009
Posts: 32

Original Poster
Rep: Reputation: 15
Thumbs up

Quote:
Originally Posted by Tinkster View Post
Hi,


Welcome to LQ!





Close :}

Code:
if [[ "$line3" =~ [0-9] ]]; then
  echo "line3"
fi



Cheers,
Tink
You are a big help, Tink, I'm off to work now. Cheers.

Last edited by btacuso; 05-20-2009 at 07:35 PM.
 
  


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