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Full Discussion: How to Grep of by section?
Top Forums Shell Programming and Scripting How to Grep of by section? Post 302949128 by drl on Tuesday 7th of July 2015 12:02:17 PM
Old 07-07-2015
Hi.

An option in perl, -00, allows processing by paragraphs, provided they are separated by empty lines:
Code:
#!/usr/bin/env bash

# @(#) s1	Demonstrate processing paragraphs of lines, perl.

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
# export PATH="/usr/local/bin:/usr/bin:/bin"
LC_ALL=C ; LANG=C ; export LC_ALL LANG
pe() { for _i;do printf "%s" "$_i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for _i;do printf "%s" "$_i";done;printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && $C perl

PATTERN=${1-Sally}
FILE=data1

pl " Input data file $FILE, looking for \"$PATTERN\":"
cat $FILE

pl " Results:"
perl -00 -wn -e " print if m{$PATTERN}" $FILE

exit 0

producing:
Code:
$ ./s1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.26-2-amd64, x86_64
Distribution        : Debian 5.0.8 (lenny, workstation) 
bash GNU bash 3.2.39
perl 5.10.0

-----
 Input data file data1, looking for "Sally":
John Smith
----------------
memberOf: example1;sampletest;test
memberOf: example2;sampletest;test
memberOf: example3;sampletest;test
memberOf: example4;sampletest;test
A Member of 4 Groups

Sally Smith
----------------
memberOf: example1;sampletest;test
memberOf: example2;sampletest;test
memberOf: example3;sampletest;test
A Member of 3 Groups

Toby Smith
----------------
memberOf: example1;sampletest;test
memberOf: example2;sampletest;test
memberOf: example3;sampletest;test
memberOf: example4;sampletest;test
memberOf: example5;sampletest;test
A Member of 5 Groups

-----
 Results:
Sally Smith
----------------
memberOf: example1;sampletest;test
memberOf: example2;sampletest;test
memberOf: example3;sampletest;test
A Member of 3 Groups

This also allows constructs such as:
Code:
$ ./s1 'John|Toby'

producing:
Code:
 Results:
John Smith
----------------
memberOf: example1;sampletest;test
memberOf: example2;sampletest;test
memberOf: example3;sampletest;test
memberOf: example4;sampletest;test
A Member of 4 Groups

Toby Smith
----------------
memberOf: example1;sampletest;test
memberOf: example2;sampletest;test
memberOf: example3;sampletest;test
memberOf: example4;sampletest;test
memberOf: example5;sampletest;test
A Member of 5 Groups

Best wishes ... cheers, drl
 

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LEARN ABOUT OSX

test::harness::results

Test::Harness::Results(3pm)				 Perl Programmers Reference Guide			       Test::Harness::Results(3pm)

NAME

       Test::Harness::Results - object for tracking results from a single test file

SYNOPSIS

       One Test::Harness::Results object represents the results from one test file getting analyzed.

CONSTRUCTION

       new()

	   my $results = new Test::Harness::Results;

       Create a test point object.  Typically, however, you'll not create one yourself, but access a Results object returned to you by
       Test::Harness::Results.

ACCESSORS

       The following data points are defined:

	 passing	   true if the whole test is considered a pass
			   (or skipped), false if its a failure

	 exit		   the exit code of the test run, if from a file
	 wait		   the wait code of the test run, if from a file

	 max		   total tests which should have been run
	 seen		   total tests actually seen
	 skip_all	   if the whole test was skipped, this will
			     contain the reason.

	 ok		   number of tests which passed
			     (including todo and skips)

	 todo		   number of todo tests seen
	 bonus		   number of todo tests which
			     unexpectedly passed

	 skip		   number of tests skipped

       So a successful test should have max == seen == ok.

       There is one final item, the details.

	 details	   an array ref reporting the result of
			   each test looks like this:

	   $results{details}[$test_num - 1] =
		   { ok 	 => is the test considered ok?
		     actual_ok	 => did it literally say 'ok'?
		     name	 => name of the test (if any)
		     diagnostics => test diagnostics (if any)
		     type	 => 'skip' or 'todo' (if any)
		     reason	 => reason for the above (if any)
		   };

       Element 0 of the details is test #1.  I tried it with element 1 being #1 and 0 being empty, this is less awkward.

       Each of the following fields has a getter and setter method.

       o   wait

       o   exit

perl v5.10.0							    2007-12-18					       Test::Harness::Results(3pm)
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