[SOLVED] How to test for a range of digits?

btacuso · 05-20-2009, 07:07 PM

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.

Tinkster · 05-20-2009, 07:17 PM

Hi,

Welcome to LQ!

Quote:

Originally Posted by btacuso

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

btacuso · 05-20-2009, 07:34 PM

Quote:

Originally Posted by Tinkster

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.