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Full Discussion: kshell variables and awk
Top Forums UNIX for Dummies Questions & Answers kshell variables and awk Post 302097598 by kshelluser on Monday 27th of November 2006 10:47:17 AM
Old 11-27-2006
kshell variables and awk

Hi,

Is it possible to initialise a shell variable and set it to a value from an awk command?

i.e.

#set myvalue = to the first 8 charachters of the line that begins with 0
myvalue = awk '/^0/ {substr($0,1,8)}' myvaluefile

or even declare a variable, then reinitialise it as part of the awk command, such as:

myvalue="TEST"
awk '/^0/ {$myvalue=substr($0,1,8)}' myvaluefile

I'm new to shell scripting so I'm not even sure if this is possible?

Thanks
 

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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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