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Full Discussion: Divide numbers into intervals
Top Forums Shell Programming and Scripting Divide numbers into intervals Post 302447751 by ahmad.diab on Tuesday 24th of August 2010 07:21:15 AM
Old 08-24-2010
Quote:
Originally Posted by radoulov
Code:
perl -lane'BEGIN {
  $l = shift; $, = "\t";
  }
print $_, "out of range" and next 
  if $F[1] < $l;
while (1) {  
  last if (($i += $l) + $l) > $F[1];
  print $F[0], $i ? $i : 1, $i + $l;
  }' 100 infile


The code is not giving the desired o/p see below

Code:
o/p
a1      100     200
a1      200     300

BR

---------- Post updated at 14:21 ---------- Previous update was at 14:13 ----------

radoulov, you forget to reset the $i counter.

after modification on your code, it worked , see below:-


Code:
 perl -lane'BEGIN {
  $l = shift; $, = "\t";
  }
print $_, "out of range" and next 
  if $F[1] < $l;
while (1) {  
  last if ($i + $l) > $F[1];        
  print $F[0], $i ? $i : 1, $i+$l; $i+=$l ; 
  } ; $i=0 ;' 100 test1

 

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LEARN ABOUT MOJAVE

perlio::via::symlink

symlink(3)						User Contributed Perl Documentation						symlink(3)

NAME

       PerlIO::via::symlink - PerlIO layers for create symlinks

SYNOPSIS

	open $fh, '>:via(symlink)', $fname;
	print $fh "link foobar";
	close $fh;

DESCRIPTION

       The PerlIO layer "symlink" allows you to create a symbolic link by writing to the file handle.

       You need to write C"link $name" to the file handle. If the format does not match, "close" will fail with EINVAL.

TEST COVERAGE

	----------------------------------- ------ ------ ------ ------ ------ ------
	File				      stmt branch   cond    sub   time	total
	----------------------------------- ------ ------ ------ ------ ------ ------
	blib/lib/PerlIO/via/symlink.pm	     100.0  100.0    n/a  100.0  100.0	100.0
	Total				     100.0  100.0    n/a  100.0  100.0	100.0
	----------------------------------- ------ ------ ------ ------ ------ ------

AUTHORS

       Chia-liang Kao <clkao@clkao.org>

COPYRIGHT

       Copyright 2004-2005 by Chia-liang Kao <clkao@clkao.org>.

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.18.2							    2005-03-01								symlink(3)
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