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Full Discussion: extracting substrings
Top Forums Shell Programming and Scripting extracting substrings Post 302264950 by otheus on Friday 5th of December 2008 07:48:25 AM
Old 12-05-2008
Code:
awk '/^>/ { last=$0; next; } !/^>/ { print last,substr($0,10,30);' }

In the unlikely case that awk reports that it doesn't know about "substr", use "nawk", "mawk", or "gawk".

Also, you said 10 - 40. I'm assuming that means starting at the 10th character and stopping but including the 39th character.
 

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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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