#!/usr/bin/perl
use strict;
my $record;
while (<DATA>){
  s/\n/ /;
  if (/^\d+~/){
    $record =~ s/ +$//; # trim trailing spaces
    printf "%s\n",$record if ($record);
    $record = $_;
  } else {
    $record .= $_;
  }
}
$record =~ s/ +$//;
printf "%s\n",$record if ($record);

__DATA__
99~Arun~Kumar~Mobilenum:
1234-567 , from Earth
Human
98~Mahesh~Babu~Mobilenum:
5678-901 , from Earth
Human

[download]
poj

In reply to Re^3: perl regex to match newline followed by number and text by poj
in thread perl regex to match newline followed by number and text by arunkumarzz

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