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Full Discussion: (n)awk: print regex search output lines in one line
Top Forums Shell Programming and Scripting (n)awk: print regex search output lines in one line Post 302969635 by Don Cragun on Thursday 24th of March 2016 08:43:20 PM
Old 03-24-2016
Assuming the tags are in order as shown in your sample, the following should work:
Code:
awk '/ref1/{r1=$0};/ref2/{r2=$0};/ref3/{r3=$0};/ref4/{print r1 r2 r3 $0}' file.xml

Note, however, that your code (and this trivial modification of it) are not just matching tag names, they are matching tag names and text that is not part of the tag name (in the case of ref2, it is only matching text since the tag name is re2 instead of ref2).

Of course, you could also use:
Code:
grep 'ref[1-4]' file.xml | paste -d '\0\0\0\n' - - - -

or:
Code:
awk '/ref[1-4]/' file.xml | paste -d '\0\0\0\n' - - - -

Last edited by Don Cragun; 03-24-2016 at 10:00 PM.. Reason: Add grep/paste alternative
This User Gave Thanks to Don Cragun For This Post:
Tobias-Reiper
 

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LEARN ABOUT REDHAT

igawk

IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME

       igawk - gawk with include files

SYNOPSIS

       igawk [ all gawk options ] -f program-file [ -- ] file ...
       igawk [ all gawk options ] [ -- ] program-text file ...

DESCRIPTION

       Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).

       AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like

	      @include getopt.awk

       in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.

OPTIONS

       See gawk(1) for a full description of the AWK language and the options that gawk supports.

EXAMPLES

       cat << EOF > test.awk
       @include getopt.awk

       BEGIN {
	    while (getopt(ARGC, ARGV, "am:q") != -1)
		 ...
       }
       EOF

       igawk -f test.awk

SEE ALSO

       gawk(1)

       Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.

AUTHOR

       Arnold Robbins (arnold@skeeve.com).

Free Software Foundation					    Nov 3 1999								  IGAWK(1)
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