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Full Discussion: Indexing Variable Names
Top Forums Shell Programming and Scripting Indexing Variable Names Post 302918719 by Scrutinizer on Thursday 25th of September 2014 07:25:04 AM
Old 09-25-2014
What is your desired output:
something like this?
Code:
$ awk -F'[$][{]' '{for(i=2; i<=NF; i++){sub(/\}.*/,x,$i); print NR, $i}}' file
1 CSV
2 EXPECTED_FILE
4 TT
4 FQN%/*
4 SCRIPT_NAME
4 XML_REPORT
5 CSV
5 SCRIPT_NAME

or like this:
Code:
$ awk -F'[$][{]' '{for(i=2; i<=NF; i++){sub(/[^_A-Z0-9].*/,x,$i); print NR, $i}}' file
1 CSV
2 EXPECTED_FILE
4 TT
4 FQN
4 SCRIPT_NAME
4 XML_REPORT
5 CSV
5 SCRIPT_NAME

---
Or with GNU grep ( if compiled with Perl regex option):
Code:
$ grep -nPo '(?<=\$\{).*?(?=\})' file
1:CSV
2:EXPECTED_FILE
4:TT
4:FQN%/*
4:SCRIPT_NAME
4:XML_REPORT
5:CSV
5:SCRIPT_NAME

or

Code:
$ grep -nPo '(?<=\$\{).*?(?=[^_A-Z0-9])' file
1:CSV
2:EXPECTED_FILE
4:TT
4:FQN
4:SCRIPT_NAME
4:XML_REPORT
5:CSV
5:SCRIPT_NAME


Last edited by Scrutinizer; 09-25-2014 at 09:55 AM..
 

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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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