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Full Discussion: KSH - need to write a script to abbreviate a string
Top Forums Shell Programming and Scripting KSH - need to write a script to abbreviate a string Post 302535142 by Yoodit on Thursday 30th of June 2011 01:05:45 AM
Old 06-30-2011
KSH - need to write a script to abbreviate a string

Dear Members,

I have to write a UNIX script (KSH) to create a 6 letter abbreviation from a given string. The string will have alphabets and underscores only.

e.g. abc_pst_xyz is our string and I have to create an abbreviation which will look like 'abpsxy' or 'abcpyz' etc.

Now comes the tricky part. I have to make sure that out of the given set of strings no two strings have the same abbreviation.

Basically, I need to search a particular directory and see if such an abbreviation already exists. If it does then, I have to recreate a new set of 6 letter abbreviation from the string.

Please help me with this script. Also, help me understand the logic to generate or select random characters from a string.

Thank you very much in advance.
 

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LEARN ABOUT MOJAVE

datetime::timezone::olsondb5.18

DateTime::TimeZone::OlsonDB(3)				User Contributed Perl Documentation			    DateTime::TimeZone::OlsonDB(3)

NAME

       DateTime::TimeZone::OlsonDB - An object to represent an Olson time zone database

VERSION

       version 1.63

SYNOPSIS

	 none yet

DESCRIPTION

       This module parses the Olson database time zone definition files and creates various objects representing time zone data.

       Each time zone is broken down into several parts.  The first piece is an observance, which is an offset from UTC and an abbreviation.  A
       single zone may contain many observances, reflecting historical changes in that time zone over time.  An observance may also refer to a set
       of rules.

       Rules are named, and may apply to many different zones.	For example, the "US" rules apply to most of the time zones in the US,
       unsurprisingly.	Rules are made of an offset from standard time and a definition of when that offset changes.  Changes can be a one time
       thing, or they can recur at regular times through a span of years.

       Each rule may have an associated letter, which is used to generate an abbreviated name for the time zone, along with the offset's
       abbreviation.  For example, if the offset's abbreviation is "C%sT", and the a rule specifies the letter "S", then the abbreviation when
       that rule is in effect is "CST".

USAGE

       Not yet documented.  This stuff is a mess.

AUTHOR

       Dave Rolsky <autarch@urth.org>

COPYRIGHT AND LICENSE

       This software is copyright (c) 2013 by Dave Rolsky.

       This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

perl v5.18.2							    2013-10-28					    DateTime::TimeZone::OlsonDB(3)
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