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Full Discussion: awk substr
Top Forums Shell Programming and Scripting awk substr Post 302785061 by @man on Sunday 24th of March 2013 02:51:20 PM
Old 03-24-2013
my lines are like this:
Code:
chr2L	Center=128181;Length=461

I want this at output for each line:
Code:
chr2L	128181

I tried this:
Code:
awk '{print $1 "\t" substr($2,8)}' BG3_Ash1-4177_Ave_Rto_sorted_3SDcutOff_0f
old_500_360_Top6_MinVal0.gff > test.gff

as you see it returns this:
Code:
128181;Length=461

is there anyway to modify this with substr to get desired output?

Thanks

---------- Post updated at 07:51 PM ---------- Previous update was at 07:47 PM ----------

Rudic this seems to work:

Code:
awk 'match ($2, /=.*;/){print $1 "\t" substr($2,RSTART+1, RLENGTH-2)}' input > output

it is correct, right?
 

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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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