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Top Forums Shell Programming and Scripting awk split after second underscore in field Post 302986091 by RavinderSingh13 on Saturday 19th of November 2016 10:23:04 PM
Old 11-19-2016
Hello cmccabe,

If your Input_file have string named _exon only in 4th field and not repeating further into any field then you could try following too.
Code:
awk '{sub(/_exon.*/,X,$0);print}'  Input_file

If you have multiple strings to be removed from 4th field(2nd underscore) onwards and they are unique and not coming into any other field and you could change above code to following with a minor change too.
Code:
awk '{sub(/_exon.*|_etc.*|_another_string.*/,X,$0);print}'   Input_file

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 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). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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