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Full Discussion: Help with replace character based on specific location
Top Forums Shell Programming and Scripting Help with replace character based on specific location Post 302503866 by pravin27 on Saturday 12th of March 2011 04:35:45 AM
Old 03-12-2011
Code:
#!/usr/bin/perl
use strict;

my %ref_h;
my (@refdata,@ar);
my ($start,$end,$format,$col);

open(RF,"<","reffile") or  die "Fail-$!\n";
while (<RF>) {
chomp;
@refdata=split;
$ref_h{$refdata[0]}=[$refdata[1],$refdata[2]]
}
close(RF);

open(DF,"<","datafile") or die "Fail-$!\n";
while (<DF>){
        chomp;
        if (/^\+\+/) {
        ($col=$_)=~s/\++//g;
        next unless exists $ref_h{$col} ;
        print "$_\n";
        $start=$ref_h{$col}[0];
        $end=$ref_h{$col}[1];
        next;
        }
        next unless $start>0;
        $format="A".($start-1)." x".($end-$start+1)." A*";
        @ar=unpack($format, $_);
        ($ar[1],$ar[2])=("X" x ($end-$start+1),$ar[1]);
        print @ar,"\n";
        $start=0;$end=0;
}
close(DF);

Last edited by pravin27; 03-12-2011 at 05:47 AM..
This User Gave Thanks to pravin27 For This Post:
perl_beginner
 

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LEARN ABOUT SUNOS

shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The  following  default	shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/pfcsh, /bin/pfksh, /bin/pfsh, /bin/sh,
       /bin/tcsh,  /bin/zsh,  /sbin/jsh,  /sbin/sh,  /usr/bin/bash,  /usr/bin/csh,  /usr/bin/jsh,  /usr/bin/ksh,  /usr/bin/pfcsh,  /usr/bin/pfksh,
       /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh. Note that /etc/shells overrides the default list.

       Invalid shells in /etc/shells may cause unexpected behavior (such as being unable to log in by way of ftp(1)).

FILES

       /etc/shells	       lists shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.10							    4 Jun 2001								 shells(4)
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