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Full Discussion: Print array into a single file - AWK
Top Forums Shell Programming and Scripting Print array into a single file - AWK Post 302724273 by Corona688 on Wednesday 31st of October 2012 12:37:14 PM
Old 10-31-2012
That is several useless uses of awk and backticks... You could just do

Code:
for FILE in file1 file2 file3 file4 file5 file6 file7 file8
do
...
done

or

Code:
while read FILE
do
...
done < list.txt

Also, why should it be printing what you want? You're telling it to print x lines, you get x lines.

Also, why should it be printing the new values? You stored the old values in the array, and that's what you get.

You don't need to do either of them. You don't need an array, and you don't need to store all the old values.

In fact you don't need a loop at all, awk is quite capable of handling more than one file all by itself.

So:

Code:
# Store these things in a file for awk to grab easily
cat >trans.txt <<EOF
AAA,-10
BBB,20
CCC,30
EOF

awk -F"," -v OFS="," '

# Load data from trans.txt, the very first file
NR==FNR { T[$1]=$2; next }
# Translate data if found in array
$8 in T { $8=T[$8] }
{ print > FILENAME ".aaa" }' trans.txt file*

Last edited by Corona688; 10-31-2012 at 01:47 PM..
 

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LEARN ABOUT LINUX

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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