Compare two files using awk Post: 302319932

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Top Forums Shell Programming and Scripting Compare two files using awk Post 302319932 by paul.o on Tuesday 26th of May 2009 02:37:54 PM

05-26-2009

Registered User

Compare two files using awk

Hi. I'm new to awk and have searched for a solution to my problem, but haven't found the right answer yet. I have two files that look like this:

file1
Delete,3105551234
Delete,3105551236
Delete,5625559876
Delete,5625556789
Delete,5625553456
Delete,5625551234
Delete,5625556956
Delete,5625556643
Delete,6265552486
Delete,6265559365
Add,7755559833
Add,9515550087

file2
93,170334,0,-1,-1,,AAA,,5625556643,6465550987,,,-1,,581,93,-1
94,170335,0,-1,-1,,AAA,,7145550167,6465550987,,,-1,,581,93,-1
107,170239,0,-1,-1,,AAA,,6265559999,6465550987,,,-1,,581,93,-1
109,170240,0,-1,-1,,AAA,,5205558723,6465550987,,,-1,,581,93,-1
110,170241,0,-1,-1,,AAA,,3105551236,6465550987,,,-1,,581,93,-1
111,170348,0,-1,-1,,AAA,,6195550178,6465550987,,,-1,,581,93,-1
114,170256,0,-1,-1,,AAA,,5625559876,6465550987,,,-1,,581,93,-1
118,170336,0,-1,-1,,AAA,,3105551234,6465550987,,,-1,,581,93,-1
119,170337,0,-1,-1,,AAA,,5125559812,6465550987,,,-1,,581,93,-1
120,170338,0,-1,-1,,AAA,,5125559083,6465550987,,,-1,,581,93,-1
121,101,1,-1,-1,,AAA,,,2135559126,,,-1,,0,85,-1
122,170339,0,-1,-1,,AAA,,5625559067,6465550987,,,-1,,581,93,-1
125,999996,1,-1,-1,,AAA,,,6265559365,,,-1,,0,2561,-1
127,170340,0,-1,-1,,AAA,,5625551234,6465550987,,,-1,,581,93,-1
128,170341,0,-1,-1,,AAA,,5625559148,6465550987,,,-1,,581,93,-1
129,170342,0,-1,-1,,AAA,,5625556789,6465550987,,,-1,,581,93,-1
130,170343,0,-1,-1,,AAA,,5625559210,6465550987,,,-1,,581,93,-1
133,100,1,-1,-1,,AAA,,,6265552486,,,-1,,0,85,-1
134,170344,0,-1,-1,,AAA,,5625553456,6465550987,,,-1,,581,93,-1
135,170345,0,-1,-1,,AAA,,7605559809,6465550987,,,-1,,581,93,-1
137,170257,0,-1,-1,,AAA,,5625556956,6465550987,,,-1,,581,93,-1

I would like to look at file1 and any entry that has "Delete" in $1, look for $2 (from file1) in file2. Then, create a third file, file3, with "D,"$1 of file2. So, the output with the above examples would look like this:

file3
D,93
D,110
D,114
D,118
D,125
D,127
D,129
D,133
D,134
D,137

I hope I'm making sense. Any help would be appreciated. Thanks.

paul.o

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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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