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Full Discussion: Search and replace in file
Top Forums Shell Programming and Scripting Search and replace in file Post 302982872 by sunnu2u86 on Tuesday 4th of October 2016 10:16:48 AM
Old 10-04-2016
Search and replace in file

hi All

i'm new to shell/bash scripting and need help to write a script.

question: i have a file of 100's of line, i need to replace all zeros in that file with its respective position, starting from 0 to 23 and remove the remaining
sample file is like.

Code:
Enter the date in the format YYYYMMDD: NODE
         00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
         == == == == == == == == == == == == == == == == == == == == == == == ==

JKSJM01   2  2  2  2  2  2  2  2  2  0  2  2  2  2  2  2  2  2  2  2  2  0  0  0
JKMSC1    2  2  2  2  2  2  0  2  2  2  2  2  2  2  2  2  2  2  2  2  2  0  0  0
SRIMSC3   3  3  3  3  0  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  0  0  0
SRIMSC2   3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  3  0  0  0
SRGMSC1   6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  0  0  0
JKGJM01   6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  6  0  0  0
HRSAM02   2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  2  0  0  0

need to replace all 0's with its position except the name eg.
> before
Code:
JJKSJM01   2  2  2  2  2  2  2  2  2  0  2  2  2  2  2  2  2  2  2  2  2  0  0  0
JKMSC1     0  2  0  2  2  2  0  2  2  2  0  2  2  2  2  2  2  2  2  2  2  0  0  0

>After
Code:
JJKSJM01   09 21 22 23
JKMSC1     00 02 06 10 21 22 23

this way all 0's are replaced with there corresponding positions and remaining values are removed.

kindly help


Moderator's Comments:
Mod Comment Use code tags, thanks.

Last edited by rbatte1; 10-04-2016 at 11:48 AM.. Reason: Added CODE tags.
 

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Net::LDAP::Control::PostRead(3) 			User Contributed Perl Documentation			   Net::LDAP::Control::PostRead(3)

NAME
Net::LDAP::Control::PostRead - LDAPv3 Post-Read control object SYNOPSIS
use Net::LDAP; use Net::LDAP::Control::PostRead; use Net::LDAP::Constant qw( LDAP_CONTROL_POSTREAD LDAP_SUCCESS ); $ldap = Net::LDAP->new( "ldap.mydomain.eg" ); $postread = Net::LDAP::Control::PostRead->new( attrs => [ qw/givenName/ ] ); my $mesg = $ldap->modify( "cn=Barbara Jensen, o=University of Michigan, c=US", replace => { givenName => "Babs" }, control => $postread ); if ($mesg->code eq LDAP_SUCCESS) { my ($afterwards) = $mesg->control( LDAP_CONTROL_PREREAD ); my $entry = $afterwards ? $afterwards->entry() : undef; if ($entry) { print "givenName changed to '" . join("', '", $entry->get_value(givenName") . "' to 'Babs' "); } } DESCRIPTION
"Net::LDAP::Control::PostRead" provides an interface for the creation and manipulation of objects that represent the "Post-Read Controls" as described by RFC 4527. In modification operations, the "Post-Read request control" indicates to the server that a copy of the modified entry after the update is to be returned. After the successful completion of the operation, the accompanying "Post-Read response control" allows one to retrieve the updated value from the server's response. One use case of this control may be to obtain values of operational attributes, such as the "entryUUID" and "modifyTimestamp" attributes, updated by the server as part of the update operation. CONSTRUCTOR ARGUMENTS
In addition to the constructor arguments described in Net::LDAP::Control the following are provided. attrs => [ ATTR, ... ] A list of attributes to be returned in the entry returned in the response control. If absent, all attributes are returned. Operational attributes may be included in the list by explicitly asking for them or by using special "+" feature (provided the server supports this feature). METHODS
As with Net::LDAP::Control each constructor argument described above is also available as a method on the object which will return the current value for the attribute if called without an argument, and set a new value for the attribute if called with an argument. In addition to these methods, the control also supports the following method: entry () Returns the entry from the response control in the response message to the LDAP request that contained the request control. The result is either a Net::LDAP::Entry object or undefined. SEE ALSO
Net::LDAP, Net::LDAP::Control, http://www.ietf.org/rfc/rfc4527.txt AUTHOR
Peter Marschall <peter@adpm.de> Please report any bugs, or post any suggestions, to the perl-ldap mailing list <perl-ldap@perl.org> COPYRIGHT
Copyright (c) 2008,2011 Peter Marschall. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2013-07-21 Net::LDAP::Control::PostRead(3)
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