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Top Forums UNIX for Beginners Questions & Answers How can I assign awk's variable to shell script's variable? Post 303017865 by geomarine on Wednesday 23rd of May 2018 01:49:45 PM
Old 05-23-2018
Thanks. I don't know were '$' is missing. can you please point that out? I also found out that '<<<' represent 'here'.
Code:
read N L <<< $(grdinfo data.grd | awk '{print $10,$5}')

what is the implication of "<<<" and how can I test the output from this command line? I tried:
Code:
read N L <<< $(grdinfo data.grd | awk '{print $10,$5}')
echo N L


Last edited by Corona688; 05-23-2018 at 02:55 PM..
 

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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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