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Full Discussion: awk reformat file
Top Forums Shell Programming and Scripting awk reformat file Post 302878314 by Akshay Hegde on Thursday 5th of December 2013 01:28:43 PM
Old 12-05-2013
Quote:
Originally Posted by yifangt
Thanks Akshay!
Could you please explain your script a little bit more?

/^>/ ? ---> check whether line begins with > if yes then following
NR == 1 ? ---> check whether it's first line of file if yes print line and Row separator$0--->line RS -->\n if it's not first line print row separator line and again row separatorRS--->\n $0--->line RS -->\n.
if line does not begin with > then remove space in line gsub(/[[:space:]]/,x) and print complete line $0 without any field separator which combines your n number of rows into one row.
END{printf RS} ---> at the end print "\n"
RS --> \n --> By default

Last edited by Akshay Hegde; 12-05-2013 at 03:37 PM..
This User Gave Thanks to Akshay Hegde For This Post:
 

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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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