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Full Discussion: awk search syntax
Top Forums Shell Programming and Scripting awk search syntax Post 303043218 by migurus on Tuesday 21st of January 2020 01:17:52 PM
Old 01-21-2020
awk search syntax
I need help with understanding awk search feature.


Here I am trying to search by 4th field in this file:


Code:
$ cat xx
471013,A20,asd,100,FEATURE UNKNOWN
171014,A22,sdf,101,FEATURE WITH SUB-ELEMENT
172822,20X,xcv,102,SUB-ELEMENT
101102,22X,asd,103,CODED

When I try the search feature I get nothing:
Code:
$ awk -F, '/$4 ~ "101"/{print}' xx        

$

When I just use IF statement it works as expected:
Code:
$ awk -F, '{ if($4 == 101)print; }' xx
171014,A22,sdf,101,FEATURE WITH SUB-ELEMENT
$

Please help me understand what do I do wrong in using the search // syntax
Thanks
 

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LEARN ABOUT CENTOS

report-gtk

REPORT-GTK(1)							 LIBREPORT MANUAL						     REPORT-GTK(1)

NAME

       report-gtk - GUI tool to analyze and report ABRT problems

SYNOPSIS

       report-gtk [-vpdx] [-e EVENT] [-g GUI_FILE] PROBLEM_DIR

DESCRIPTION

       report-gtk is a graphical tool that reports application crashes and other problems caught by abrtd daemon, or created by other programs
       using libreport. report-gtk works with a single problem saved in specified PROBLEM_DIR. In the expert mode it enables access to and
       manipulation of problem data.

OPTIONS

       -d, --delete
	   Remove PROBLEM_DIR after reporting

       -e EVENT
	   Run only theset EVENTs on PROBLEM_DIR

       -g FILE
	   Alternate GUI file

       -p
	   Add program names to log

       -v, --verbose
	   Be verbose

       -V, --version
	   Display version and exit

       -x, --expert
	   Enabled advanced features

CONFIGURATION

   Reporting work flow configuration
       These configuration files are placed in /usr/share/libreport/workflows.

       Each file has XML formatting with the following DTD:

	   <!ELEMENT workflow	 (name+,description+,events*)>
	   <!ELEMENT name	 (#PCDATA)>
	   <!ATTLIST name	  xml:lang CDATA #IMPLIED>
	   <!ELEMENT description (#PCDATA)>
	   <!ATTLIST description  xml:lang CDATA #IMPLIED>
	   <!ELEMENT events =	 (event)+>
	   <!ELEMENT event =	 (#PCDATA)>

       name
	   User visible name

       description
	   User visible description

       events
	   List of executed events

       event
	   Name of event. If event is not applicable on the problem data or if it is not defined then process continues with next event sibling.

EXAMPLES

   Simple reporting work flow
	   <workflow>
	     <name xml:lang="en">Example</name>
	     <name xml:lang="cs">Piklad</name>
	     <description xml:lang="en">Example description</description>
	     <description xml:lang="cs">Piklad popisu</description>
	     <evetns>
		<event>analyze_example</event>
		<event>collect_example</event>
		<event>report_example</event>
	     </events>
	   </workflow>

AUTHORS

       o   ABRT team

LIBREPORT 2.1.11						    06/18/2014							     REPORT-GTK(1)
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