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Full Discussion: Lower Case > Upper Case
Top Forums UNIX for Dummies Questions & Answers Lower Case > Upper Case Post 302330184 by Franklin52 on Tuesday 30th of June 2009 11:34:36 AM
Old 06-30-2009
Quote:
Originally Posted by ora_umair
Hi, All -

I have a script where I need to change the server name from "dallinux01" to "DALLINUX01" in multiple places.

Can some one tell me a command that I can use for this? I played with the tr (translate) command but tr works byte by byte. Meaning that when I use the tr command all "d"s are converted to "D"s throughout the file instead of just "DALLINUX01".

Thanks!
Why don't you use sed?

Code:
sed 's/dallinux01/DALLINUX01/g' file

Regards
 

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Hash::Case(3pm) 					User Contributed Perl Documentation					   Hash::Case(3pm)

NAME
Hash::Case - base class for hashes with key-casing requirements INHERITANCE
Hash::Case is a Tie::StdHash Hash::Case is extended by Hash::Case::Lower Hash::Case::Preserve Hash::Case::Upper SYNOPSIS
use Hash::Case::Lower; tie my(%lchash), 'Hash::Case::Lower'; $lchash{StraNGeKeY} = 3; print keys %lchash; # strangekey DESCRIPTION
Hash::Case is the base class for various classes which tie special treatment for the casing of keys. Be aware of the differences in implementation: "Lower" and "Upper" are tied native hashes: these hashes have no need for hidden fields or other assisting data structured. A case "Preserve" hash will actually create three hashes. The following strategies are implemented: o Hash::Case::Lower (native hash) Keys are always considered lower case. The internals of this module translate any incoming key to lower case before it is used. o Hash::Case::Upper (native hash) Like the ::Lower, but then all keys are always translated into upper case. This module can be of use for some databases, which do translate everything to capitals as well. To avoid confusion, you may want to have you own internal Perl hash do this as well. o Hash::Case::Preserve The actual casing is ignored, but not forgotten. METHODS
Constructors $obj->addHashData(HASH) Add the data of a hash (passed as reference) to the created tied hash. The existing values in the hash remain, the keys are adapted to the needs of the the casing. $obj->addPairs(PAIRS) Specify an even length list of alternating key and value to be stored in the hash. $obj->setHash(HASH) The functionality differs for native and wrapper hashes. For native hashes, this is the same as first clearing the hash, and then a call to addHashData(). Wrapper hashes will use the hash you specify here to store the data, and re-create the mapping hash. tie(HASH, TIE, [VALUES,] OPTIONS) Tie the HASH with the TIE package which extends Hash::Case. The OPTIONS differ per implementation: read the manual page for the package you actually use. The VALUES is a reference to an array containing key-value pairs, or a reference to a hash: they fill the initial hash. example: my %x; tie %x, 'Hash::Case::Lower'; $x{Upper} = 3; print keys %x; # 'upper' my @y = (ABC => 3, DeF => 4); tie %x, 'Hash::Case::Lower', @y; print keys %x; # 'abc' 'def' my %z = (ABC => 3, DeF => 4); tie %x, 'Hash::Case::Lower', \%z; SEE ALSO
This module is part of Hash-Case distribution version 1.02, built on March 09, 2012. Website: http://perl.overmeer.net/hash-case/ LICENSE
Copyrights 2002-2003,2007-2012 by Mark Overmeer. For other contributors see ChangeLog. 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 v5.14.2 2012-03-09 Hash::Case(3pm)
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