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Full Discussion: Problem with awk syntax
Top Forums Shell Programming and Scripting Problem with awk syntax Post 302523149 by Franklin52 on Wednesday 18th of May 2011 05:11:30 AM
Old 05-18-2011
Quote:
Originally Posted by sudvishw
Thanks a lot for all your explanations and efforts. As you had rightly pointed out, I need not grep for blank lines having specified the field separator as '+'. Also, I missed to escape the metacharacter. This cleaned up code works fine:
Code:
cat num | awk -F"+" '
{if ( $0 ~ /^[0-9+-]+$/ )
      {
         if ( $0 ~ /\+/ )
         {print $0}
      }
   }'

This is Useless Use of Cat.

Code:
awk '{ commands .. }' num

 

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