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Top Forums Shell Programming and Scripting Shell variable expansion in awk Post 302958818 by yifangt on Monday 26th of October 2015 04:38:35 PM
Old 10-26-2015
quoted string literal "stem"
Ahh, it's not so simple until you pointed out.
Thanks for pointing out the difference between ">" and ">>", using ">>" is easy to cause trouble when the script is re-run unless the file is deleted each time before start.
Also I like the FILENAME version. The print part should be:
Code:
{ print $1"\n"$2 > F "_reads_R" (NR%2)+1 ".txt"}

according to file name requirement in the example, right? Thanks a lot!

Last edited by yifangt; 10-26-2015 at 05:44 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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