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Full Discussion: awk - print when condition is met
Top Forums UNIX for Beginners Questions & Answers awk - print when condition is met Post 302998555 by Don Cragun on Saturday 3rd of June 2017 03:25:28 PM
Old 06-03-2017
Defining a variable (q) in one awk script and using that variable in a different awk script can't work. But, you can easily combine your code into a single awk script:
Code:
awk '/Query= /{q=$0} c&&!--c;/Identities =/ && ($3+0)>=50 {print q, c=5}' file.txt

and get what I think you want:
Code:
Query= HWI-ST863:386:C5Y8UACXX:3:2302:16454:89688 1:N:0:ACACGAAT 5
 Sbjct  778226  CACGCCCTTTGCTTGGCCCTTGGGGATGTGGCAGCTGATTATCCCGGTAGGCGACCAGGA  778285

You might also consider trying:
Code:
awk '
$1 == "Query=" {
	q = $0
	next
}
$1 == "Identities" && ($3 + 0) > 50 {
	print q
	printSbjct = 1
	next
}
printSbjct && $1 == "Sbjct" {
	print
	printSbjct = 0
	next
}' file.txt

which also produces the same output. It is a little be longer, but I find it easier to read and understand.

P.S. Note that your specification said > 50, but your code used >=50. I copied the >= when I combined your code, but I used what you specified in your description in the code I wrote.
Last edited by Don Cragun; 06-03-2017 at 04:29 PM.. Reason: Add PS.
 

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LEARN ABOUT CENTOS

paps

PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME

       paps - UTF-8 to PostScript converter using Pango

SYNOPSIS

       paps [options] files...

DESCRIPTION

       paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves
       through the pango ft2 backend.

OPTIONS

       These programs follow the usual GNU command line syntax, with long options starting with  two  dashes  (`-').   A  summary  of  options	is
       included below.

       --landscape
	      Landscape output. Default is portrait.

       --columns=cl
	      Number of columns output. Default is 1.

       --font=desc
	      Set the font description. Default is Monospace 12.

       --rtl  Do rtl layout.

       --paper ps
	      Choose paper size. Known paper sizes are legal, letter, a4. Default is A4.

       --bottom-margin=bm
	      Set bottom margin in postscript points (1/72 inch). Default is 36.

       --top-margin=tm
	      Set top margin. Default is 36.

       --left-margin=lm
	      Set left margin. Default is 36.

       --right-margin=rm
	      Set right margin. Default is 36.

       --help Show summary of options.

       --header
	      Draw page header for each page.

       --markup
	      Interpret the text as pango markup.

       --encoding=ENCODING
	      Assume the documentation encoding is ENCODING.

       --lpi  Set the lines per inch. This determines the line spacing.

       --cpi  Set the characters per inch. This is an alternative method of specifying the font size.

       --stretch-chars
	      Indicates  that  characters  should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops
	      behaviour.

AUTHOR

       paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>.

       This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others).

								  April  17, 2006							   PAPS(1)
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