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Full Discussion: sed - print old line and new changed line
Top Forums Shell Programming and Scripting sed - print old line and new changed line Post 302280526 by otheus on Tuesday 27th of January 2009 07:21:26 AM
Old 01-27-2009
In case no sed solution is presented:
Code:
awk '/^TEST[ =]/ { print "#" $0; sub("[0-9]+",99); } { print; }'

With gawk/nawk/mawk you can pass in variables. For gawk:
Code:
gawk -v tomatch=TEST -v newval=99  \
'    /^[a-zA-Z]+[ =]/ { 
            if (match($0,"^" tomatch "[ =]")) { print "#" $0; sub("[0-9]+",newval); } 
     } 
     { print; }
'

 

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LEARN ABOUT SUSE

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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