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Top Forums UNIX for Dummies Questions & Answers find string and get the rest of the line in a pipe delimited file Post 302598853 by Corona688 on Wednesday 15th of February 2012 02:44:18 PM
Old 02-15-2012
What while loop? That had nothing to do with my code. Setting variables inside awk wouldn't set variables outside it anyway. It's its own language, not part of the shell.

The awk oneliner does the entire thing.

Code:
$ cat mapping.txt
aaa|12
bbb|23
ccc|43

$ cat input_string.txt
bbb
ccc
aaa

$ awk -F'|' 'BEGIN { while(getline<"mapping.txt") A[$1]=$2 }; A[$1] { print A[$1] }' input_string.txt
23
43
12

$

 

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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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