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Full Discussion: bash: need to have egrep to return a text string if the search pattern has NOT been found
Top Forums Shell Programming and Scripting bash: need to have egrep to return a text string if the search pattern has NOT been found Post 302669283 by agama on Tuesday 10th of July 2012 08:33:36 PM
Old 07-10-2012
This is how I would have approached it:

Code:
awk -F . '
    function dump( )
    {
        if( stuff["article"] )
            printf( "%s %s %s %s %s\n", stuff["article"], stuff["colour"], stuff["number"], stuff["name"], stuff["month"] );
        else
            printf( "Article Colours Numbers Names Month\n" );
        delete stuff;
    }

    /^article/ {
        dump( );
        stuff["article"] = $NF;
        next;
    }

    { stuff[$1] = $NF; }

    END { dump(); }

' input-file

EDIT: Crossed with Methyl; I made the assumption that the 'article' could be treated as a division. Of course, if that assumption is wrong it all goes out the window.
 

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LEARN ABOUT LINUX

bzfgrep

BZGREP(1)						      General Commands Manual							 BZGREP(1)

NAME

       bzgrep, bzfgrep, bzegrep - search possibly bzip2 compressed files for a regular expression

SYNOPSIS

       bzgrep [ grep_options ] [ -e ] pattern filename...
       bzegrep [ egrep_options ] [ -e ] pattern filename...
       bzfgrep [ fgrep_options ] [ -e ] pattern filename...

DESCRIPTION

       Bzgrep  is  used to invoke the grep on bzip2-compressed files. All options specified are passed directly to grep.  If no file is specified,
       then the standard input is decompressed if necessary and fed to grep.  Otherwise the given files are uncompressed if necessary and  fed	to
       grep.

       If  bzgrep  is  invoked as bzegrep or bzfgrep then egrep or fgrep is used instead of grep.  If the GREP environment variable is set, bzgrep
       uses it as the grep program to be invoked. For example:

	   for sh:  GREP=fgrep	bzgrep string files
	   for csh: (setenv GREP fgrep; bzgrep string files)

AUTHOR

       Charles Levert (charles@comm.polymtl.ca). Adapted to bzip2 by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.

SEE ALSO

       grep(1), egrep(1), fgrep(1), bzdiff(1), bzmore(1), bzless(1), bzip2(1)

																	 BZGREP(1)
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